Suzhou Crever Fastener Co., Ltd |
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M5 M6 M8 Dacromet Finish Hex Head Bolts , Half Thread Metric Hex Head Screws DIN 931
1. Description:
Hex Head Bolts are designed for assembly into a hole. Hex Head Bolts according to SAE specifications with a designed washer face under the head and a chamfered point. Grade
9.8 has a greater tensile strength than Grade 8.8.Standard provides specifications for the thread M3 ~ M64, A and B
grade hex head bolts .A level for D <= 24 and L <= 10D or L
<= 150mm (according to a small value) bolts; for Class B D>
24, or L> 10D or L> 150 (by a smaller value) of the bolt
GB external hexagonal bolt head on
the side of the common size and with the use of GB wrench Thread
diameter edge-to-edge head size size S socket wrench combination
wrenches Double open-end wrench Double wrench.
Hex bolts are the most
frequently used types A bolt where it holds the main function is to
meet with the nut thread. With this threaded connection method, so
that the two parts into one.
C grade hex bolts used mainly
in rough surface, the steel structure of less precision machinery,
equipment. A and B grade hex bolts are mainly used in the smooth
surface of the high precision machinery and equipment.
Most stainless steel hex screws with hexagonal head are whole tooth the whole tooth Bolt Standard: DIN933, GB5783, ISO4017, ANSIB18.2.1, JISB1180; non-standard whole tooth bolts DIN931, GB5782, ISO4014, ANSIB18.2.1, JISB1180.
2. Specification Requirements:
• Dimensions: M3-M160
• Threads: half thread, partical thread
• Material &Mechanical Properties: ISO 898-1; Class 8.8
• Head Marking: customer's band and 8.8, 10.9, 12.9
• Finish: Light Protective Oil plain, zinc, black oxide, ruspert,
dacromet, nickel
• Material: carbon steel C1018, C1022, C10B21, stainless
steel-ss304, ss316,ss410
3. Applications:
Designed for using in high-stress and high-strength applications. General Fastening applications where need high strength and superior corrosion resistance
4. Drawing Technical Data:
d1 | b to 125 | b to 200 | b over 200 | k | e | s |
M4 | 14 | – | – | 2.8 | 7.66 | 7 |
M5 | 16 | – | – | 3.5 | 8.79 | 8 |
M6 | 18 | 24 | – | 4 | 11.05 | 10 |
M8 | 22 | 28 | – | 5.3 | 14.38 | 13 |
M10 | 26 | 32 | 45 | 6.4 | 18.9 | 17 |
M12 | 30 | 36 | 49 | 7.5 | 21.1 | 19 |
M14 | 34 | 40 | 53 | 8.8 | 24.49 | 22 |
M16 | 38 | 44 | 57 | 10 | 26.75 | 24 |
M18 | 42 | 48 | 61 | 11.5 | 30.14 | 27 |
M20 | 46 | 52 | 65 | 12.5 | 33.53 | 30 |
M22 | 50 | 56 | 69 | 14 | 35.72 | 32 |
M24 | 54 | 60 | 73 | 15 | 39.98 | 36 |
M27 | 60 | 66 | 79 | 17 | 45.2 | 41 |
M30 | 66 | 72 | 85 | 18.7 | 50.85 | 46 |
M33 | 72 | 78 | 91 | 21 | 55.37 | 50 |
M36 | 78 | 84 | 97 | 22.5 | 60.79 | 55 |
M42 | 90 | 96 | 109 | 26 | 71.3 | 65 |
M45 | 96 | 102 | 115 | 28 | 76.95 | 70 |
M48 | 102 | 108 | 121 | 30 | 82.6 | 75 |
5. More Pictures:
DIN931 STAINLESS STEEL HEX HEAD BOLT, HEX CAP SCREW