China Fastener DIN912 Hex Hexagon Socket Cap Bolt Carbon Steel Black Allen Screw

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: DIN912
• Groove: Hexagon
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, GB, ANSI, BSW, JIS, ISO
• Grade: 8.8
• Thread: Unc, Unf, Un, Metric Coarse, Fine
• Surface: Plain, Zinc Plated (Blue, White, Black, Yellow), N
• Quality: 100% Tested
• Price: Factory Price
• Lead Time: 15-30 Days
• Package: Standard Package or Customer's Packing
• Box: Customer's Brand Box/Plain Box
• MOQ: Can Be Negotiated
• Shipment: by Sea / Truck / Plane / Express
• Exterior Finish: Cuotomized
• Sample: Available
• Customized: Available
• Service: One-Stop Service
• Online Sales: 24 Hours Online
• OEM/ODM: Available
• Transport Package: Bulk Packaging, Small Box(Glue Box, Color Box)
• Specification: M1.4 - M100
• Trademark: Mianxuan, Customized
• Origin: Ningbo, China
• HS Code: 7318151001
• Production Capacity: 100tons/Month
• Package Size: 10.00cm * 10.00cm * 5.00cm
• Package Gross Weight: 0.500kg

Product Description

China Fastener DIN912 Hex Socket Cap Bolt Hexagon Socket Carbon Steel Black Allen Screw

Hex Socket Heap Cap Bolt Black Allen Screw
Material:	Carbon Steel, Stainless Steel, Brass etc.
Standards:	GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS, ETC
Size:	M1.4-M100 or non-standard asa request & design
Finish:	Plain, Black, Zinc, Yellow Zinc, HDG, Dacromet, etc.

 

 

 

 

Thread Size
d

M1.4

M1.6

M2

M2.5

M3

M4

M5

M6

M8

M10

P		Pitch	Coarse thread
			Fine thread pitch-1
			Fine thread pitch-2
dk		plain head	max
		knurled heads	max
		min
da		max
ds		max
		min
e		min
k		max
		min
s		Nominal Size
		min
		max
t		min
w		min

0.3	0.35	0.4	0.45	0.5	0.7	0.8	1	1.25	1.5
-	-	-	-	-	-	-	-	1	1.25
-	-	-	-	-	-	-	-	-	1
2.6	3	3.8	4.5	5.5	7	8.5	10	13	16
2.74	3.14	3.98	4.68	5.68	7.22	8.72	10.22	13.27	16.27
2.46	2.86	3.62	4.32	5.32	6.78	8.28	9.78	12.73	15.73
1.8	2	2.6	3.1	3.6	4.7	5.7	6.8	9.2	11.2
1.4	1.6	2	2.5	3	4	5	6	8	10
1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.82	7.78	9.78
1.5	1.73	1.73	2.3	2.87	3.44	4.58	5.72	6.86	9.15
1.4	1.6	2	2.5	3	4	5	6	8	10
1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.7	7.64	9.64
1.3	1.5	1.5	2	2.5	3	4	5	6	8
1.32	1.52	1.52	2.02	2.52	3.02	4.02	5.02	6.02	8.025
1.36	1.56	1.56	2.06	2.58	3.08	4.095	5.14	6.14	8.175
0.6	0.7	1	1.1	1.3	2	2.5	3	4	5
0.5	0.55	0.55	0.85	1.15	1.4	1.9	2.3	3	4

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: DIN933, DIN931, DIN912, DIN603, DIN7985, DIN7991, DIN6921, ASME/ANSI B 18.2.1, ASME/ANSI B18.2.3.1 M, GB, BSW, ISO Hex bolt, carriage bolt, heavy hex bolt, flange head bolt, anchor bolt, etc

: DIN934, DIN6923, DIN985, ISO4032 hex heavy hex nut, 2H nut, A563 / A563M cap nut, nylon nut, etc

: threaded rod DIN975,DIN976, threaded bar DIN975 stud bolt, B7 stud bolt ect

: hex screw, DIN912; self-drilling screw, DIN7504; self-tapping screw, DIN7981/7982; drywall screw, pan head screw, button head screw, machine screw, chipboard screw, furniture screw, wood screw, etc

: flat washer DIN125, spring washer DIN127, lock washer, square washer, spring lock washer, plain washer, etc

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FAQ

Q1: What thread standards do you follow?

A1: Our screws comply with DIN, ISO, ANSI, and JIS standards, and can also be customized according to customer drawings.

Q2: What stainless steel grades do you supply for bolts?

A2: We supply multiple grades including A2-70, A2-80, A4-70, A4-80, 304, 316, and 410SS, suitable for different mechanical strength and corrosion-resistance requirements.

Q3: Do you provide samples before mass production?

A3: Yes, we offer free or low-cost samples for quality and dimension confirmation prior to order.

Q4: How do you control product quality?

A4: Every batch is tested for torque, hardness, thread precision, and salt spray corrosion resistance, following ISO 9001 quality system standards.

Q5: Do you offer OEM or customized production?

A5: Yes. We can produce screws according to samples, technical drawings, or specific drive/head combinations, and offer custom packaging and labeling.

Q6: What is the difference between A2 and A4 stainless steel bolts?

A6: A2 (304) is ideal for standard outdoor and industrial use, while A4 (316) contains molybdenum, offering higher corrosion resistance for marine, chemical, and salt-spray environments.

Q7: Will stainless steel bolts rust over time?

A7: Under severe chemical or chloride exposure, A2 may develop slight surface corrosion. A4/316 performs better in harsh environments. We also offer passivation treatment for enhanced protection.