A conventional screwdriver bit, such as a flat or Philips head, cannot be used to install or remove them. Instead, you'll need a ratchet and socket set. It allows you to fit the socket bit over the head of the hex cap screw, and is also known as a socket wrench. The hex cap screw can be installed or removed by turning the socket wrench once it's in place. To increase torque, use the socket wrench to hold all six sides of the head. Hex cap screws are also less prone to stripping than standard screws. When you insert or remove a standard screw, the head may strip. When the bit is inserted into the driving recess of the head, it may cause the screw to be damaged during installation or removal. Stripping is less likely with hex cap screws because the rotating force is distributed evenly on all six surfaces.
STANDARD SPECIFICATION
- Stainless Steel Screw standard:- ISO 14583
- DIN Standard:-B.S. DIN 933, DIN 931, DIN 934, DIN 912, DIN 603, DIN 6923, DIN 970, DIN 7981, DIN 7982, DIN916, DIN 913, DIN 7985
- UTS – Unified Thread Standard:- UNC, UNF, UNEF, UNS, NPT, NPTF
- Grade:-18-8 Stainless Steel, 4.8, 8.8, A2, A4, A2-70; A4-70; A4-80 Hex Head Screws
- British standards:-BS 57
- Length:- 3 mm to 200 mm
- Stainless Steel Threads:-Metric, Metric Fine, BSW, UNF, UNC, BA, BSF and BSCY (cycle) threads or as required
- Stainless Steel Hex Head Screws Size:-Cold Froging : M2-M24, Hot forging M24-M100, 1-1/2” Dia, up to 1100mm lg, Machining and CNC for Customized connecting element: up to M100 / 4” Dia, up to 1500mm lg Stainless Steel Hex Head Screws M2, M3, (M3.5), M4, M5, M6, M8, M10, M12, (M14), M16, (M18), M20, (M22), M24, (M27), M30, M33, M36, M42, (M45), M48 to M160 and Custom Sizes
- Stainless Steel Threads:-METRIC, BSW, BSF, UNC, UNF or as required
- Standard:-ISO 14585C ~DIN 7981C, DIN 7973C ~ISO 1483, DIN 7983C ~ISO 7051, ISO 4762, ISO 2009, ISO 7050, ISO 14587, ISO 14587, ISO 14584, ISO 14582, ANSI B18.3.1M, ASME B18.6.3, GB/T5782, GB/T5783, GB5783 DIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards ANSI – American National Standards Institute
- Dimensions:-ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded.
- Tolerance:-+/-0.01mm to +/-0.05mm
- Head drive:Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
- Type:Pan/ Round/ Oval/ Hex Head/ Truss head
- Head:Pan head, flat head, oval head, hex head, phillips head
- Finishing:-Zinc (yellow, white, blue, black), black oxide Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET
- Finish:-Per ASTM A380/A380M
- Production process:-Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing
- Surface Coating::-Ptfe Coated , Hot Dipped Galvanizing , Phosphate , Teflon , Xylon , Zinc Phosphate, Manganese Phosphate, Zinc Electro Plating (Hexavalent or Trivalent Chrome), ZAC (Zinc Alluminium Flake Coating), Cadmium All surface finishes can be supplied, including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE.
- Surface treatment:-Polish, Passivation, Anodizing, Sand blasting, Heat-disposing, Hot dip galvanizedHeat-disposing, Rust preventive oil, Black oxide coating, Ruspert coating screws, Electroplating (color, blue, white, black zinc, Ni, Cr, tin, silver)
- Top Manufacturers:-SPAX® Screws, GKW, Unbrako, Kundan, APL, Sundaram Precision, Infasco, EBY Fastener Etc.
- Stainless Steel Hex Head Screws Packing:-IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
- Why choose us?:-Best Price in India and compare to China, Professional technical team, High precision threads, Strong production line, Micro Metals will be your reliable partner
- Test Certificate:-Manufacturer Test Certificate as per EN 10204 / 3.1, Tensile testing to ISO 898-1, Nut proof load testing to ISO 898-2, Suitability for preloading to EN 14399-2, Suitability test for calibrated preload to EN 14399-10, Charpy Impact testing in accordance with ISO 148-1, Hardness testing to ISO 6508-1, Tri-Roll Thread Comparators, Calibrated gauges and tools
- Other available material:-Stainless Steel : SUS201, SUS304, SUS316, SUS410, Brass : C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40), Bronze : C51000, C52100, C54400 etc, Aluminum : Al6061, Al6063 etc, Aluminum Alloy : Al6061, Al6063 etc, Titanium and Titanium Alloy : TAD, TA1-TA8, TB2, TC1-TC10, Alloy steel : SCM435, C10B21, C10B33
- Uses & application:-Wind tower, Nuclear power, Railway, Automotive industry, Construction, Electronic industry
- Stainless Steel Hex Head Cap Screw :-AISI 302, 304, 304L,316, 316L, 310, 317, 316S31,317L, 321, 347, 410, 420,904L etc.
- Duplex & Super Duplex Steel Hex Head Cap Screw:-ASTM / ASME A815 UNS No. S31803, UNS No. S 32205, UNS No. S 31254, UNS No. S 31550, UNS No. S 32750, and UNS No. S 32760
- Carbon Steel Hex Head Cap Screw:-ASTM A307, A193
- Alloy Steel Hex Head Cap Screw:-ASTM / ASME A/SA 193 / 194 B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M
- Nickel Alloy Hex Head Cap Screw:-ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 UNS 2200 (NICKEL 200) / UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8825 (INCONEL 825), UNS 6600 (INCONEL 600) / UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 8020 (ALLOY 20 / 20 CB 3)
Nominal |
Thread. |
Hex Socket Size |
Body diameter and Head height |
Head Dia |
Soc. length |
||
Size |
Pitch |
Max |
Min |
Max |
Min |
||
J |
D /H |
A |
K |
||||
M3 |
0.5 |
2.50 |
3.00 |
2.86 |
5.50 |
5.20 |
1.3 |
M4 |
0.70 |
3.00 |
4.00 |
3.82 |
7.00 |
6.64 |
2.00 |
M5 |
0.8 |
4.00 |
5.00 |
4.82 |
8.50 |
8.14 |
2.70 |
M6 |
1.0 |
5.00 |
6.00 |
5.82 |
10.00 |
9.64 |
3.30 |
M8 |
1.25 |
6.00 |
8.00 |
7.78 |
13.00 |
12.57 |
4.3 |
M10 |
1.5 |
8.00 |
10.00 |
9.78 |
16.00 |
15.57 |
5.50 |
M12 |
1.75 |
10.00 |
12.00 |
11.73 |
18.00 |
17.57 |
6.60 |
M16 |
2.0 |
14.00 |
16.00 |
15.73 |
24.00 |
23.48 |
8.80 |
M20 |
2.5 |
17.00 |
20.00 |
19.67 |
30.00 |
29.48 |
10.70 |
M24 |
3.0 |
19.00 |
24.00 |
23.67 |
36.00 |
35.38 |
12.90 |
TYPES OF HEX HEAD CAP SCREWS
