M8X2 1/2" Titanium Alloy Gr5 Hexagon Socket Countersunk Head Screw DIN 7991

Product Name	Hex Socket Flat Countersunk Head Screw
Standard	GB/DIN/BS/ANSI
Grade	4.8/6.8/8.8/10.9/12.9
Material	Carbon Steel/SS304/Titanium
Surface Treatment	Plain,Black,Zinc,HDG,Dacromet,Nickel Plated
Packing detailes	Woven Bag,Carton,Pallets,or as your requests.
Payment Terms	T/T
Delivery Method	by sea,by air or by express service

Screw Thread d

M3 M4 M5 M6 M8 M10 M12 (M14) M16 M20

P Pitch b ref. dk Theoretical max Actual min ds max min e  min k max s Nominal Size max min t min Minimum tensile load(N)-8.8  Minimum tensile load(N)-10.9  Minimum tensile load(N)-12.9

0.5 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 18 20 22 24 28 32 36 40 44 52 6.72 8.96 11.20 13.44 17.92 22.40 26.88 30.80 33.60 40.32 5.54 7.53 9.43 11.34 15.24 19.22 23.12 26.52 29.01 36.05 3 4 5 6 8 10 12 14 16 20 2.86 3.82 4.82 5.82 7.78 9.78 11.73 13.73 15.73 19.67 2.303 2.873 3.443 4.583 5.723 6.863 9.149 11.429 11.429 13.716 1.86 2.48 3.1 3.72 4.96 6.2 7.44 8.4 8.8 10.16 2 2.5 3 4 5 6 8 10 10 12 2.080 2.58 3.08 4.095 5.140 6.140 8.175 10.175 10.175 12.212 2.020 2.52 3.020 4.020 5.020 6.020 8.025 10.025 10.025 12.032 1.1 1.5 1.9 2.2 3 3.6 4.3 4.5 4.8 5.6 3220 5620 9080 12900 23400 37100 53900 73600 100000 162000 4180 7300 11800 16700 30500 48200 70200 96000 130000 204000 4910 8560 13800 19600 35700 56600 82400 112000 154000 239000

e mim=1.14 S min 80% of the values specified in ISO 898-1.

Shanghai G&T Industry Co., Ltd. is a manufacturer of all standard DIN, BS,JIS and ISO fasteners and other industrial parts with well-equipped testing facilities and strong technical force. 


With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in Mold, Electricity, Construction, Solar energy, Automotive, Machinery & Equipment and other industries.







Q1: Why choose us?

To provide our customers with first-class services in the supply of quality fasteners minimizing costs.

1.1. Vision: We wishes to build successful relations with our partners and be their first choice as an  fasteners supplier.



1.2. Mission: professional customer service, and innovation in technology.



Further more, we do not only offer you fasteners with more reasonable quality and price than your expectations, but also would like to be your friend and to provide you market sales suggestion for your reference, if you have a better idea , please feel free to share with us.



Q2.How is quality ensured?

All our processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality , good at modern concept of management.



Q3:If you can not find on our website the product you need how to do?

You can send the pictures/photos and drawings of the products you need by email , we will check if we have them. We develop new models every month, Or you can send us samples by DHL/TNT, then we can develop the new model especially for you.



Q4:Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision?

Yes, we can, we can provide high precision parts and make the parts as your drawing.



Q5: How should I order and make payment?

By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.



Q6: What's your Delivery Time?



Standard parts: 7-15days



Non-standard parts: 15-25days



We will make the delivery as soon as possible with the guarantee quality.



Q7:How to Custom-made (OEM/ODM)

If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.



Q8:Which mode of transport would be better?

In general, the production are heavy, we advice to make delivery by sea, Also we respect your views of other transportation as well.