Product Overview

Stainless Steel Socket Head Cap Screws are precision fastening components featuring a cylindrical head design and internal hexagonal drive structure. They are installed using hex keys and are suitable for mechanical structures requiring compact installation space and accurate fastening.

Manufactured from stainless steel and carbon steel, these screws feature a compact head structure, convenient installation, and reliable connection performance. The internal hex drive design reduces external space requirements, making them suitable for equipment interiors and confined installation areas.

Product Features

Compact cylindrical head design reduces installation space requirements.
Internal hex drive allows convenient tool operation and efficient assembly.
Provides stable fastening performance for long-term equipment connections.
Clean appearance suitable for precision equipment applications.
Supports customized thread sizes, lengths, and surface treatments.

Applications

Stainless Steel Socket Head Cap Screws are widely used in new energy equipment, energy storage systems, mechanical equipment, automation systems, medical devices, precision instruments, and electronic equipment structures.

Service Advantages

The company supports customized production based on customer drawings and samples. According to different product structure requirements, the company can provide specification confirmation, prototype development, and mass production services.

With experience supplying new energy and automotive-related industries, the company can meet customer requirements for product consistency and delivery stability.

Product Parameters

Parameter	Description
Product Name	Stainless Steel Socket Head Cap Screws
Material	Stainless steel, carbon steel
Head Structure	Cylindrical head with internal hex drive
Thread Specification	Customized according to customer requirements
Length Specification	Adjustable according to requirements
Surface Treatment	Customized according to application environment
Accuracy Requirements	According to customer technical standards
Custom Method	Drawing and sample development supported

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DIN 912 - 1983

Hexagon Socket Head Cap Screw

product-804-403

Thread Size			M1.4	M1.6	M2	M2.5	M3	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20
d
P	Pitch	Coarse Pitch	0.3	0.35	0.4	0.45	0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5
		Fine Pitch 1	-	-	-	-	-	-	-	-	1	1.25	1.25	1.5	1.5	1.5	1.5
		Fine Pitch 2	-	-	-	-	-	-	-	-	-	1	1.5	-	-	2	2
d_k	Round Head	Max.	2.6	3	3.8	4.5	5.5	7	8.5	10	13	16	18	21	24	27	30
	Knurled Head	Max.	2.74	3.14	3.98	4.68	5.68	7.22	8.72	10.22	13.27	16.27	18.27	21.33	24.33	27.33	30.33
	Min.		2.46	2.86	3.62	4.32	5.32	6.78	8.28	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67
d_a	Max.		1.8	2	2.6	3.1	3.6	4.7	5.7	6.8	9.2	11.2	13.7	15.7	17.7	20.2	22.4
d_s	Max.		1.4	1.6	2	2.5	3	4	5	6	8	10	12	14	16	18	20
d_s	Min.		1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.82	7.78	9.78	11.73	13.73	15.73	17.73	19.67
e	Min.		1.5	1.73	1.73	2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.43	13.72	16	16	19.44
k	Max.		1.4	1.6	2	2.5	3	4	5	6	8	10	12	14	16	18	20
k	Min.		1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.7	7.64	9.64	11.57	13.57	15.57	17.57	19.48
s	Nominal		1.3	1.5	1.5	2	2.5	3	4	5	6	8	10	12	14	14	17
	Min.		1.32	1.52	1.52	2.02	2.52	3.02	4.02	5.02	6.02	8.025	10.025	12.032	14.032	14.032	17.05
	Max.		1.36	1.56	1.56	2.06	2.58	3.08	4.095	5.14	6.14	8.175	10.175	12.212	14.212	14.212	17.23
t	Min.		0.6	0.7	1	1.1	1.3	2	2.5	3	4	5	6	7	8	9	10
w	Min.		0.5	0.55	0.55	0.85	1.15	1.4	1.9	2.3	3	4	4.8	5.8	6.8	7.8	8.6

product-862-431

Thread Size			M22	M24	M27	M30	M33	M36	M42	M48	M56	M64	M72	M80	M90	M100
d
P	Pitch	Coarse Pitch	2.5	3	3	3.5	3.5	4	4.5	5	5.5	6	6	6	6	6
		Fine Pitch 1	1.5	2	2	2	2	3	3	3	4	4	4	4	4	4
		Fine Pitch 2	2	-	-	-	-	-	-	-	-	-	-	-	-	-
d_k	Round Head	Max.	33	36	40	45	50	54	63	72	84	96	108	120	135	150
	Knurled Head	Max.	33.39	36.39	40.39	45.39	50.39	54.46	63.46	72.46	84.54	96.54	108.54	120.54	135.63	150.63
	Min.		32.61	35.61	39.61	44.61	49.61	53.54	62.54	71.54	83.46	95.46	107.46	119.46	134.37	149.37
d_a	Max.		24.4	26.4	30.4	33.4	36.4	39.4	45.5	52.6	63	71	79	87	97	107
d_s	Max.		22	24	27	30	33	36	42	48	56	64	72	80	90	100
d_s	Min.		21.67	23.67	26.67	29.67	32.61	35.61	41.61	47.61	55.54	63.54	71.54	79.54	89.46	99.46
e	Min.		19.44	21.73	21.73	25.15	27.43	30.85	36.57	41.13	46.83	52.53	62.81	74.21	85.61	97.04
k	Max.		22	24	27	30	33	36	42	48	56	64	72	80	90	100
k	Min.		21.48	23.48	26.48	29.48	32.38	35.38	41.38	47.38	55.26	63.26	71.26	79.26	89.13	99.13
s	Nominal		17	19	19	22	24	27	32	36	41	46	55	65	75	85
	Min.		17.05	19.065	19.065	22.065	24.065	27.065	32.08	36.08	41.08	46.08	55.1	65.1	75.1	85.12
	Max.		17.23	19.275	19.275	22.275	24.275	27.275	32.33	36.33	41.33	46.33	55.4	65.4	75.4	85.47
t	Min.		11	12	13.5	15.5	18	19	24	28	34	38	43	48	54	60
w	Min.		9.4	10.4	11.9	13.1	13.5	15.3	16.3	17.5	19	22	25	27	32	34