Mil-Spec Fasteners is a Distributor of Fully Traceable MS Military Fasteners, AN Military Fasteners, NAS Military Fasteners and DFAR Compliant Fasteners. Socket Head Cap Screw. 5x5 Socket Head Cap Screw Item#: GSC M2. The following chart depicts the torque specifications for all screws and nuts used in the AMAYA Embroidery Peripheral. You can easily screw multiple units together to make longer standoffs. The earring has 3 mm long M2. They are available with button, cap, and countersunk heads in steel and socket head in nylon. How to you go about deciding on a setting? Thanks for any advice. You also need the standoff that connects to the hole on the motherboard and allows the SSD card to sit horizontal to the motherboard when the M2 x 2. Machine screws are blunt ended screws used to fasten metal parts together. Metric Star/ 6 lobe screws (generic torx®) are now stocked daily at Fastener Express. 6 via the internet, M2. Order ZORO SELECT Machine Screws, M2. Hand Tools, Power Tools, Air Tools, Heaters and more. Suggested Maximum Torque Values for Screws and Bolts. 20 hex adjusters come lubricated for smooth mating with compatible components. If you want to buy cheap m2 screw, choose m2 screw from banggood. It seems like there is so much conflicting info out there. 5 screws separately. Shop our selection of M2, Machine Screws in the Hardware Department at The Home Depot. In SolidWorks 2013's hole wizard, I cannot find the option of making holes for this bolt. 6x6/10pcs)- 1-S32606H Flat Head Screw (M2. Shop a large range of m2 screws at MSC Industrial Supply. Almita Helical Screw Piles are designed and built right here in Alberta for Albertans. 6-M5 Cup Point Ni-Cr-Mo Steel: M1. Hi Strangely enough, there are no real answers online! But what I found is that it most likely be either M2 3mm or M2. 5 on both ends, since this matches the size of the Raspberry Pi mounting holes. Mouser offers inventory, pricing, & datasheets for Screws & Fasteners. no it's not on the motherboard also not in the box, the pc is a custom one but prebuilt so they probably took it out for whatever reason. PCB Libraries Mounting Holes MTG240_600-VIA 2. Diameter of the cap is 8 mm. 2 SSD in place. M2 Machine Screws at element14. ) which are recommended for checking external and internal screw threads of workplaces and for the setting and checking of certain of the screw gauges. Available shopping options in the Metric SEMS Machine Screws search department. Competitive prices from the leading M2 Machine Screws distributor. 2332 fax: 508-966-2326 punch numbers screw size phillips 1a punch diameter m2 3pm2f 1998 1am2f 1998 7/16 m2. Our galvanized steel DELscrew (set screw) is made of free-cutting steel, the equivalent to SUM24L in JIS (Japanese Industrial Standard) View our free-cutting steel data sheets here. 516D7985A at Zoro. Machine Screws ISO metric machine screws are limited to four different head shapes: countersunk, raised countersunk, panhead, and cheesehead. M3 Machine screw (L) 25mm (Dia) 3mm, Pack of 10 - B&Q for all your home and garden supplies and advice on all the latest DIY trends. Please remember these are only Metric SEMS Machine Screw categories. 30 caliber ammo can bracket, for the M1919A4 machine gun. MSC Industrial supply is here to support all your metalworking and maintenance repair needs with over 1 million products in stock and ready to ship today!. M2 Screws & Bolts at element14. 2 Type 2280. M2 Machine Screws at Farnell. premiere supplier of small diameter fastener products. 3) to your wish list. Note that I also want to include the threads so that the screws combine the two plates without bolts. The "M" designation for metric screws indicates the outer diameter of the screw in millimetres, so for an M2 screw, the outer diameter is 2mm. I am making a model that includes combining two plates using screw holes. Low Profile Screws・Small Head Screws product listings. Screws Sold in packs of 25. 5 Machine Screws distributor. Hi Strangely enough, there are no real answers online! But what I found is that it most likely be either M2 3mm or M2. Competitive prices from the leading M2 Screws & Bolts distributor. Cordless Tools & Accessories. Includes one current issue Surplus US GI,. Buy Precision Fasteners, Lead Screws, Captive Screws, Nuts, Washers, Hardware & Mechanical Components At Accu. It seems like there is so much conflicting info out there. 5 screw in an M2. delivery date Est. 4 Thread Size, 4 mm Length, Fully Threaded, Import (Pack of 100) 5. 45X16 DIN7985A PHIL PAN MS ZINC, M2. Now I have lost the screw and part of my laptop is literally coming apart when I open my laptop. Hex drive Socket Cap Screws are often found in applications where there is insufficient wrench/socket clearance for hex head cap screws, or when a "finished" look is desired. Usually made from brass or steel and also come with coatings such as brass, copper, nickel and galvanized which help to deter rust. 4mm and an M2 is 1. By clicking sign up you agree to Dirty Works Terms & Conditions and Policies. How to you go about deciding on a setting? Thanks for any advice. 45X16 DIN7985A PHIL PAN MS ZINC, M2. 39 as of 10/7/2019 - Free shipping worldwide on all orders. 6 10 mm screw … Reed Plate Screws and Nuts Mix Pack Diatonic M1. Extra fine threads and minature screws: The Machinery's Handbook has listings of dimensions for really small screws. 5 2 3 assorted buy M2 M2. 20 : M2 x 3 Brass Slot Countersunk c/t Pack 50 3232266 £ 3. At the tip of your tweezers you'll have Bridge Screws, Setting Lever and Minute Train Cover Screws, Date Indicator Guard Screws, Case Screws 1/2 Head, Case Screws Round Head, Circuit Screws, Coil Screws, Coil Guards and Stators Screws, Battery Clamp Screws. Almita Helical Screw Piles are designed and built right here in Alberta for Albertans. 2 SSD Screws. M2 screws are typically used in the manufacture of small items of electrical equipment, laptops, cameras and mobile phones. 3 Power screws M2. Sign up for email to learn about the latest innovations, styles, and promotions. 2 SSD screws, made to exacting standards by OMZ®. 5 M3 KM Screw Flat Head Phillips Screws Countersunk SSD Electronic Repair Screws Accessories for Sony DELL Samsung IBM HP Toshiba,Pack of 500. 3 gmswhich is a hair heavier than my preference. 7m 1998 ifi 90° flat countersunk head (machine) telephone 508. M2 Machine Screws at Farnell. 5 screw in an M2. Button heads provide a larger bearing surface and a lower head profile than Socket heads, and are used when the material is too thin to countersink. The standoff male thread is M2 while the screw with oversize flat phillips head is also M2. Would be best if you ask shop you got your M. 2 Mounting Screw for M2 Size SSD (2-Pack) with fast shipping and top-rated customer service. 6 and M2 ( 80 pc ) Includes Free USA shipping $25. Power Screws and ACME Threads: Power screws' job is to translate rotational motion into linear motion. Socket low head cap screw, shoulder screw, countersunk socket head screw, button head socket screw, socket set screw, taper pressure plug - Metric & Inch. Buy M2 x 8mm Cap Head Captive Screws (DIN 912) - 18-8 / 304 Stainless Steel from AccuGroup's Precision Screws range, specialists in precision component engineering. NBK defines "Miniature Screws" and "Precision Screws" as small screws with a nominal diameter of M2. We carry M2. Please select from the following applicable options. Metric Stainless Button Head Cap Screws - M2, M3, M4, M5 & M6? Metric High Tensile Steel Button Head Screws - M2, M2. upon further inspection there is a screw pre-installed just below the m. 2 SSD (SAMSUNG 960EVO). ) which are recommended for checking external and internal screw threads of workplaces and for the setting and checking of certain of the screw gauges. I have a 2016 M2 that I hotmelted several months ago. US Micro Screw is a Seattle based micro screw supplier committed to offering you the widest range of custom micro screws available in the industry today. 5 size screws fit almost all of the Adafruit breakout/dev board mounting holes (2. Looking for other lengths or types? We can source them for you, please contact us. The screw I use is M2. Buy Airy-Screws-S2030 / M2 X 30mm Socket-head Cap Screws online at the lowest price. The "M" designation for metric screws indicates the outer diameter of the screw in millimetres, so for an M2 screw, the outer diameter is 2mm. 5 M3 KM Screw Flat Head Phillips Screws Countersunk SSD Electronic Repair Screws Accessories for Sony DELL Samsung IBM HP Toshiba,Pack of 500. If all else fails, you may want to use our Drill Size Conversion Table or our Tap Drill Size Calculator. The following chart depicts the torque specifications for all screws and nuts used in the AMAYA Embroidery Peripheral. 5mm Metric H. When the screws are produced there are +/- allowances on length. delivery Tue, Oct 15. 6 - m5 6 m6 - m10 7 m12 - m18 8 m20 - m27 9 m30 - m42 10 fine pitch cap m6 - m16 11 low head screwstechnical information 12 m4 - m16 13 countersunk screwstechnical information 14 - 15 m2 - m4 16 m5 - m10 17 m12 - m24 18 button head screwstechnical. 5, pan-head screw is 6 mm long. 3) to your wish list. SEARCH RESULTS: 117 matches, M2. Top Rated Plus. The Arduino is designed to take M3 screws, but the Pi is designed to take M2. 5 M3 KM Screw Flat Head Phillips Screws Countersunk SSD Electronic Repair Screws Accessories for Sony DELL Samsung IBM HP Toshiba,Pack of 500. A set screw is a small, threaded rod that is used to fix a device such as a pulley to a rotating shaft. The GrabCAD Library offers millions of free CAD designs, CAD files, and 3D models. Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the. Bolt BHS M2. Metric Socket Head Cap Screws (Black Alloy SteelGrade 12. 96 : M2 x 4 Brass Slot. 9 x 32mm Stainless Steel Cross Head Countersunk Self Tapping Screw Fasteners (100-pack) Product Image. hex socket cap screw iso 4762 / jis b1176 / din 912 d l m1. Set screws are commonly used in machine parts. Buy 24 Pack of M2 x 3mm Small Laptop Screws Black Zinc Laptop Machine Screw Phillips Dell, Toshiba, Hp, Compaq, IBM, Samsung, Medion, Acer, Sony, Apple, Alienware, Lenovo, fits Some WiFi Cards, Keyboards ect: Computer Screws - Amazon. Buy Cheap M2 Laptop Screws Now. There are 249 m2. IS-2-M2 Model M2 identification shown on body casting. M2 Screws & Bolts at element14. Once your M. Choose from our selection of self-tapping screws, including over 3,400 products in a wide range of styles and sizes. M2 Machine Screws at element14. Note that I also want to include the threads so that the screws combine the two plates without bolts. FREE next day delivery available, free collection in 5 minutes. NBK Official Website (Specialist Special Screw Manufacturer). Headed Screw-in Inserts Three cutting flutes allow self-tapping, cold installation into most grades of plastic and composite materials. Harmonica screws for Hohner, Seydel, and Lee Oskar M1. ZaGO's array of cutting-edge machine screws will serve as a solution for any particular, nuanced challenge you may face. Screws Sold in packs of 25. 2 SSD (SAMSUNG 960EVO). The self-tapping type 17 auger tip eliminates the need to predrill, and its larger diameter steel shank creates a nearly unbreakable screw. M2 = 2-56?? Electric Plane Talk. Socket Head Cap screws are ideal for precision work with close tolerances. The standoff male thread is M2 while the screw with oversize flat phillips head is also M2. Whether you need extraordinary performance for military, medical, or industrial equipment, ZaGO's self-sealing machine screws will protect your gear through and through. We dug in and did piles of research and put together this well organized and categorized screw buying guide setting out and showing you every possible type of screwhead available for each type of job, material, etc. 5*4mm USD 2. We are happy to provide quotations on M2. Sheet Metal Screws Behind every project is a True Value® As an email subscriber you will receive exclusive in-store offers, online-only coupons, and helpful project tips and advice. Drywall screws fasten drywall to wood or metal studs while cement board screws will ensure that your cement boards are securely installed. 9 High Tensile Black Allen Bolts. There are two kinds of ISO metric threads: coarse and fine. Metric Fasteners. 30 caliber ammo can. Used with drilled, punched or nested holes in sheet metal, resin impregnated plywood,. Buy 24 Pack of M2 x 3mm Small Laptop Screws Black Zinc Laptop Machine Screw Phillips Dell, Toshiba, Hp, Compaq, IBM, Samsung, Medion, Acer, Sony, Apple, Alienware, Lenovo, fits Some WiFi Cards, Keyboards ect: Computer Screws - Amazon. Is there a standardised table of torque settings for stainless steel (A2) machine screws into aluminium Al 6082-T6? I am looking for torque settings for M2. Stainless Steel Self Tapping Screws. premiere supplier of small diameter fastener products. 5 Catherine earring. A lubricated bolt requires less torque to attain the same clamping force as a non-lubricated bolt. Save on speaker cabinet hardware parts and much more. Thousands of customer product reviews. Looking for other lengths or types? We can source them for you, please contact us. Cheese Head Screws have a disc with a cylindrical outer edge, height approximately half the head diameter, and a flat bearing surface. Browse M2-0. There are 249 m2. 2 SSD screws, made to exacting standards by OMZ®. 2 nvme screws Include description. Enter your name, email address and the item or page you are viewing so we can reply to your question or concern, or give us a call toll free at 866-573-0445 during our normal business hours. I have a 2016 M2 that I hotmelted several months ago. NBK Official Website (Specialist Special Screw Manufacturer). 6 via the internet, M2. All M2 SH Standard Screws, M2 hex nut and Flat Washer for M2 screw. Find quality machine screws online or in store. Buy M2 x 10mm Button Head Captive Screws (ISO 7380) - 18-8 / 304 Stainless Steel from AccuGroup's Precision Screws range, specialists in precision component engineering. The self-tapping type 17 auger tip eliminates the need to predrill, and its larger diameter steel shank creates a nearly unbreakable screw. Screws and Bits - M2 2mm Screws Notebook Screws - modDIY. Competitive prices from the leading M2 Machine Screws distributor. What metric size of screw is near a #4-40 screw? 4-40 is 2. delivery date Est. The body length is 4mm and the male thread length is 3mm and finally the body width is 4. Includes one current issue Surplus US GI,. Hex socket Set Screws (Hexagon socket Set Screws) (Stock items) Free sample is not available. The OHTAKE automatic screw feeder employs a horizontal feeder that reduces the risk of jamming. We strongly believed that there was a need for one company to carry in stock a full line of aluminum fasteners from A to Z, along with a knowledgeable staff who knew alloys, finishes and their applications. You'll have enough screws, nuts, and hex standoffs to fuel your maker tendencies for days on end! M2. In SolidWorks 2013's hole wizard, I cannot find the option of making holes for this bolt. Speaker parts for replacement or speaker upgrade. 5x6mm Motor Screw SKU:TL2628. 10," "1/8-10 x 4/6" and "M5-. M2 x 4mm Countersunk Head Hexagon Socket Drive Screw in Grade 10. Fan Screws Set for 25mm Thick Fan (3mm x 35mm) $1. Electronic Hardware manufacturer of thumb screws, standoffs, spacers, swage standoffs, male-male standoffs, male-female standoffs, jackscrews, captive panel screws, shoulder screws, thumb nuts, handles, cable ties, male-male standoffs, male-female standoffs, jack screws, washers, metric thumb screws 2000 series, metric sizes, American standard sizes. Socket Head Cap screws are a more modern alternative standard machine fastener to the standard hexagon headed bolt or setscrew, as found on much modern machinery. 5 on both ends, since this matches the size of the Raspberry Pi mounting holes. Manufactured from the highest grade of resources that ensure effectiveness, these Red Dot Sight Accessories are what its manufacturer had in mind when constructing the perfect add-on for some of the most high quality devices in laser technology. The information available from our sources is usually sufficient for all computer related drill or screw. CAD File Download Technical Specifications 360 Degree View. 45X6 DIN965 PHIL FLAT MS ZINC, M2. M2 Machine Screws at element14. Screws for plastic are designed for use in phenolics, glass filled fire retardant UL94 materials or the more common nylon, polypropylene, polycarbonate, acetal, polystyrene, and ABS. Save on speaker cabinet hardware parts and much more. Heatsink Screws expansion port screws JCIS JIS Japanese Camera Industry Standard waferhead wafer wafer head thinhead thin head M2. There are 249 m2. ioan skurka. A complete line of speaker parts for DJ’s, Musician and Sound Reinforcement. Weld screws are used when a screw must be permanently welded to a metal surface. Bolt BHS M2. Quote and order online today!. Details about M2 M2. 20 hex adjusters come lubricated for smooth mating with compatible components. LaptopScrewsDirect is your first stop for all your hard to find Laptop Screws. 95, Plus Shipping. Order ZORO SELECT Machine Screws, M2. Competitive prices from the leading M2 Screws distributor. Ideal for making devices and equipment smaller and safer. This table is only to help find a nearest equivalent sized fastener. screws, unless otherwise specified Male and female screws with copper, aluminum or plastic, for die-cast plastic products Applicable products Ordinary products Electronic products Vehicles, Engines Construction products Note: *material callouts are JIS (Japanese standard) Basic data courtesy of Tohnichi Torque Handbook. 2 NVMe or SATA SSD Laptop or Computer upgrade in place, fitting both standard or gaming motherboards as per pics. It is made from steel, is zinc-plated, and comes in packs of 25. Find quality machine screws online or in store. We also have you covered for screws of M2. Machine Screws ISO metric machine screws are limited to four different head shapes: countersunk, raised countersunk, panhead, and cheesehead. Video credit: How It's Made / CC BY-SA 4. Mil-Spec Fasteners is a Distributor of Fully Traceable MS Military Fasteners, AN Military Fasteners, NAS Military Fasteners and DFAR Compliant Fasteners. Usually made from brass or steel and also come with coatings such as brass, copper, nickel and galvanized which help to deter rust. 80 (Including VAT at 20%. Our USA warehouse and distribution center services all 50 states & Our New Facilities In Canada Supply millions of tools from stock to professional quality conscious tool users. NBK Official Website (Specialist Special Screw Manufacturer). 5 Machine Screws distributor. These thread sizes and classes represent bolts and screws, as well, as other standard external threads. These are genuine original parts, fitted on most gaming laptops and computer brands. M2 Machine Screws at element14. 20 hex adjusters come lubricated for smooth mating with compatible components. Competitive prices from the leading M2 Screws & Bolts distributor. Stainless Steel Self Tapping Screws. The self-tapping type 17 auger tip eliminates the need to predrill, and its larger diameter steel shank creates a nearly unbreakable screw. Details about M2 M2. 4 Screw with Flat Washer. Read M2 Laptop Screws Reviews and Customer Ratings on M2 Laptop Screws Reviews, Home Improvement, Screws, Nuts, Bolts Reviews and more at Aliexpress. Speaker cabinet Hardware. 2 SSD (SAMSUNG 960EVO). Thread cutting machine screws that tap their own threads. 5 screw in an M2. 50mm clear acrylic tube,M2,M2. 6 10 mm screw … Reed Plate Screws and Nuts Mix Pack Diatonic M1. The ported gas screw increases the starting volume in the gas cylinder, which results in lower peak pressures. The 8910 service manual has a diagram on replacing the SSD and it shows that you need a M2 x 2. 0 slot on the XPS 8900 mother board?. com, The FCH Network, your source for Machine Screws Diameter M2. 1 mm but on this size of thread, the thread height is only 0. Our screws are used to secure the M. You also need the standoff that connects to the hole on the motherboard and allows the SSD card to sit horizontal to the motherboard when the M2 x 2. 2 over 3 to 10 mm0. 96 : M2 x 3 Brass Slot Countersunk c/t Pack 25 3232277 £ 2. The self-tapping type 17 auger tip eliminates the need to predrill, and its larger diameter steel shank creates a nearly unbreakable screw. April 28th, 2017. shoulder length and the head height. Socket Head Cap screws are ideal for precision work with close tolerances and. Harmonica screws for Hohner, Seydel, and Lee Oskar M1. McMaster-Carr is the complete source for your plant with over 580,000 products. Bright zinc-plated carbon steel machine screws with pan head. Our range of stainless steel fasteners include allen key products, bolts, circlips, nuts, pins, screws, washers and threaded rod in a variety of sizes. 18-8 Stainless Steel Pan Head Machine Screw, Meets ISO 7045, T6 Star Drive, M2-0. Cheap hex socket screw, Buy Quality socket screw directly from China wood screws Suppliers: 250pcs 304 Stainless Steel M2 Wood Screws Hex Socket Set Hex Nut Kit Socket Bolt Self Tapping Woodworking Tool Hardware Fastener Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. Metric Pan head machine screws - PoziDriv® M1. PACKAGE CONTENTS Bolt BHS M2. uk/Clearance%20Holes%20+%20Tolerance. Online Source for Spare Parts and Accessories for Pro Audio, DJ Equipment, Keyboards, Synths, Mixers, Controllers and more. MSC Industrial supply is here to support all your metalworking and maintenance repair needs with over 1 million products in stock and ready to ship today!. Screws for 450 Pro main frame TL45061 SKU:SC-450PROMF. Micro Fasteners and Screws Sold on Amazon. SEARCH RESULTS: 117 matches, M2. Kit for No. Machine screws are blunt ended screws used to fasten metal parts together. has had the heads of its screws ruined by Philips screwdrivers. 5 or M3 The correlation between the guage size of a wood. M2 screws are typically used in the manufacture of small items of electrical equipment, laptops, cameras and mobile phones. 45mm Machine Screws 7 products found. 5MM Black Laptop Screws (2) M2 X 2MM Laptop Machine Screws (9) M2 X 3MM Black Screws (2). Buy your screws from RMRC. Click on image to see it on a Vehicle Cradle D38579-30-AMMO-CAN-BRKT: Bracket, Ammo Can,. April 28th, 2017. A power screw is used to convert a rotary motion into a linear motion for power transmission. M2 Screws & Bolts at element14. The screw I use is M2. M2 x 4mm Countersunk Head Hexagon Socket Drive Screw in Grade 10. PCB Libraries Mounting Holes MTG240_600-VIA 2. The adjuster body is constructed of 303 stainless steel and the ball tip is constructed using 440 stainless steel that is fixed onto the adjuster using epoxy. The following chart depicts the torque specifications for all screws and nuts used in the AMAYA Embroidery Peripheral. Drywall screws fasten drywall to wood or metal studs while cement board screws will ensure that your cement boards are securely installed. Kit for No. Priced from. 18-8 Stainless Steel Pan Head Machine Screw, Meets ISO 7045, T6 Star Drive, M2-0. Set screws are commonly used in machine parts. 8mm diameter so it would be either M2. Mouser offers inventory, pricing, & datasheets for M2. 1oz / 3g What's Included: 10x Socket Head Self Tapping Screws M2 X 5mm (Black) Notes: Uses RC4WD 1. 5 and below, including M1, M1. Air Tools & Accessories. 96 : M2 x 3 Brass Slot Countersunk c/t Pack 25 3232277 £ 2. If you didn't migrate data from an existing drive, install. 5x16 12 pcs. as a result I have to use a bit of force to put it back. Hand Tools, Power Tools, Air Tools, Heaters and more. The actual diameter of an M3 screw is usually about 2. The male threads extend another 6 mm past the standoff body, and the female threads extend at least 6. The “M” designation for metric screws indicates the outer diameter of the screw in millimetres, so for an M2 screw, the outer diameter is 2mm. This applies to clean and and dry parts. Power screws should be designed for smooth and noiseless transmission of. The first time you see a callout can be a little confusing, but it's pretty straightforward once you. Online Source for Spare Parts and Accessories for Pro Audio, DJ Equipment, Keyboards, Synths, Mixers, Controllers and more. Mouser offers inventory, pricing, & datasheets for M2. 6 and M3 threads. Accu ProKits are the Ultimate Fastener Kits, built. 5 screw in an M2. 5 Screw Set is a must-have smörgåsbord for your workstation. Machine Screws, which are seldom—if ever—known by any other name, commonly range in size from M2 (small) to M10. 1oz / 3g What's Included: 10x Socket Head Self Tapping Screws M2 X 5mm (Black) Notes: Uses RC4WD 1. 6-M5 Cup Point Ni-Cr-Mo Steel: M1. 5 screw is 2. The screw I use is M2. Accu's Cap Screw Kits are available in Micro Thread Sizes (M2, M2. 5f 1998 7/16 m3 3pm3f 1998 1am3f 1998 7/16 m3. 6 Phillips Round Head Self-tapping Screw Bolts Stainless Steel Brand New. 3 Pack of Original OMZ® M. A power screw is used to convert a rotary motion into a linear motion for power transmission. 5 definitely seems to be more common and I guess it could be easy to mistakenly use an M2. 96 : M2 x 4 Brass Slot. If you want to buy cheap m2 screw, choose m2 screw from banggood. Heatsink Screws expansion port screws JCIS JIS Japanese Camera Industry Standard waferhead wafer wafer head thinhead thin head M2. 5, M3, and M4 sizes.