standard size bolt and nut, nut/bolt, bolt Information Themechanical grade is 12.9, case hardening is HRC 38-42, Material is 40CR,and the surface is treated with bluing, screw thread has two type description, one is the metric system:M12-M24-6g, another is denominator system:1/2-1/4--2A.the specification of all price bolt and nut / hex bolt and nut can be customized Design / Structure / Details Pics Partial list   We have thousands different part number of standard size bolt and nut, nut/bolt, bolt ,such as :  

1	2B5484+7K1706	D2,933C
2	093-0251+093-0316	D3,D4,931,933
3	8H7504+6S3419	DH028/S50/S55/R450/R500
4	TB9/16*1 3/4
5	4K7038+7K2017	D3,D4,D4D,931,933,941,215
6	7H3596+7K2017	931,933,941
7	TB5/8*1 15/16	R130LC
8	7H3597+1M1408	D4,D5,D5H,D6,D7,953,955,977,561,
9	TB5/8*2 3/32	R210
10	9G3110+1M1408	225,941,951C,951B
11	SH8756	225,941,951B
12	1S1859+1S1860	D6,D7,D7H,D8,D6H
13	144-32-11211	D60AEPPLS-6
14	207-32-11310	D60AEPPLS-7
15	150-32-21321	D65AEPS-6
16	154-32-21320	D65AEPPLS-7
17	7H3598+1S1860	235,571,572,583
18	6V1792+1S1860	955,963,973,977
19	1S8804/154-32-11210	D80A-8

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