Alloy Steel Black Oxide Hex Flange Bolts GB5787 Flange Cap Screw

Description:

High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws

Choose these Class 10.9 steel screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Head height includes the flange. Length is measured from under the flange.

Black-phosphate steel screws are mildly corrosion resistant in dry environments. Zinc yellow-chromate plated steel screws resist corrosion in wet environments.

Screws that meet ISO 898-1 or SAE J1199 comply with specifications and testing requirements for material quality.

Hexagon Flange Bolts - Product Grade B
GB 5787
d	P(mm)	b(mm)			dc(mm)	k(mm)	s(mm)		ds(mm)
		L≤125	125<b≤200	L>200	max	max	min	max	min	max
M5	0.8	16	/	/	11.4	5.6	6.64	7	4.82	5
M6	1	18	/	/	13.6	6.8	7.64	8	5.82	6
M8	1.25	22	28	/	17	8.5	9.64	10	7.78	8
M10	1.5	26	32	/	20.8	9.7	12.57	13	9.78	10
M12	1.75	30	36	/	24.7	11.9	14.57	15	11.73	12
M14	2	34	40	53	28.6	12.9	17.57	18	13.73	14
M16	2	38	44	57	32.8	15.1	20.48	21	15.73	16

FAQ:

Q1. Can I have a sample order for Hex flange bolt?

A:Yes,we welcome sample order to test and check quality.

Q2. What about the lead time?

A: 3-5 days for Sample preparing ,8-10 working days for mass production

Q3. Do you have any MOQ limit for hex flange bolt order?

A: Low MOQ, 1pc for sample checking is available.

Q4. How do you ship the goods and how long does it take to arrive?

A: Ship by DHL, UPS, FedEx or TNT for sample order,and it takes about 3-7days

Ship by Sea from Shanghai Port,and it takes 3-30days to arrive.

Q5. How to proceed an order for hex flange bolt?

A: Firstly let us know your requirements or application.

Secondly We quote according to your requirements or our suggestions.

Thirdly customer confirms the samples and places deposit for formal order.

Fourthly We arrange the production.