China Factory Black Carbon Steel DIN7991 Hexagon Flat Socket Head Cap Screw

Quantity	1 - 1	2+ - 2+
Price	US $1,040.00	US $999.00

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Model NO.	DIN7991	Connection	Common Bolt
Head Style	Round	Standard	DIN, GB, ANSI, BSW
Grade	10.9	Surface	Black
Finsh	Zn	Gr	8.8 /10.9
Range	M4-M24	Packing	25kg Bulk Packing
Label	OEM	with Pallet	Yes
Transport Package	Wooden Pallet Packing	Specification	M4-M24
Trademark	N/M	Origin	China
HS Code	7318150000	Production Capacity	60000/Ton/Year

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Product Description

CHINA FACTORY Black Carbon Steel DIN7991 Hexagon Flat Socket Head Cap Screw

Material	Alloy Steel
Grade	8.8, 10.9, 12.9
Finish	Plain(Black oxide), Zinc Plated(White/Yellow), H.D.G and etc.
Thread	Metric,UNC,UNF,BSW
Standard	ISO, DIN, ASME, JIS, BS and Non-standard
Packing	1. Bulk in cartons (25-30kg Max.)+wooden pallet 2. Small Boxes into outer carton + wooden pallet 3. According to customer special demand
LeadTime	15-30 work days after order confirmed

How to make a flat socket head cap screw ?

* After acid cleaning,we will delivery to the wire Drawing workshop for Drawing.

* Then transfer to the cold heading machine to make the hexagon head.(here we can do the head marking with 010.9). if over M24, our machine will very biggest, you see~~

Flat socket head cap screw DIN7991

Thread rolling (below pictures)

* Then send to the heat treatment workshop to do the most important step--Heat treatment and with black.

And for Znic goods we will do it on plating factory.
we can send the free samples to you to check the quanlity always if you need!

Package: 25kg bulk packing / small box inner carton
Label: we can follow customer requirements.
Shipment port: SHANGHAI

We,Hunan Gurth Technology Co., Ltd., is a professional manufacturer for fasteners with 2 factories in Wenzhou and Hunan bases and a number of experts and technicians engaged in hardware industries for more than 20 years. We focus on fasteners, our main products :

[ Socket head cap screw DIN912 8.8,10.9,12.9 ]
[ Set screw Din916 DIN913,DIN914 ]
[ Flat cap screw DIN7991 ]
[ Button cap screw ISO7380 ]
[ Hex bolts DIN933,DIN931 8.8,10.9,12.9 ]
[ Flange bolts DIN6921 ]
[ Nut DIN934,DIN982,DIN985,DIN6923 ]
[ Anchor ]
[ Rod thread ]
[ Washer ]

Through the years, we are consistently committed to supporting clients with better quality and competitive price.