Screw Factory Supply Hex Bolts Gr 12.9 High Strength Tension Control Twist-off Bolts DIN931 DIN933

Name: Screw Factory Supply Hex Bolts Gr 12.9 High Strength Tension Control Twist-off Bolts DIN931 DIN933
Brand: Hunan Gurth Technology Co., Ltd
SKU: Tradewheel_2611351
Availability: InStock

FOB Price 0.05 - 0.1 USD / pieces

Contact Now

Quick Details (View All)

Model NO.	DIN931-2	Head Style	Hexagonal
Standard	DIN, ANSI, GB, BSW	Grade	8.8, 10.9, 12.9
Application	Machinery, Chemical Industry, Environmental, Building	Finish	Black
Surface	Black, Blue-White Zinc-Plated	Finsh	Zn, Black Oxide
Gr	8.8 /10.9/ 12.9	Range	M3-M64
Packing	25kg Bulk Packing	Label	OEM
with Pallet	Yes	Industry	Automobile, Furniture, Construction, Machinery
Transport Package	Wooden Pallet Packing	Specification	M3-M64
Trademark	N/M	Origin	China
HS Code	7318150000	Production Capacity	60000/Ton/Year

Product Details

Product Description

Company Info.

Overview
Product Parameters
Manufacturing Process
Packaging & Shipping
Company Profile

Product Description

Screw Factory Supply Hex Bolts Gr 12.9 High Strength Tension Control Twist-off Bolts DIN931 DIN933

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	30-45 work days after order confirmed

How to make a 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, Knurling or not Knurling here). if over M24, our machine will very biggest, you see~~

Socket head cap screw DIN912 before thread rolling

Thread rolling

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

Znic plated products are processed in plating factory.
HRC Test is applied for quality control.

HRC PERFECT!! Free samples can be sent to customerrs for quality check if needed.

Ordinary package: 25kg bulk packing / small box inner carton, OEM accepted.
Label: as customer request.
Port of loading: Shanghai, China

Hunan Gurth Technology Co., Ltd is specialized in R&D and manufacturing of fasteners with 2 production bases in Wenzhou and Hunan, with a number of experts and technicians engaged in hardware industries for more than 20 years. Our main products include:

[ 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 price. We look forward to cooperating with distributors and dealers in each territory.