براغي HS | براغي عالية القوة | مصنع البراغي

• Standard: DIN 931 / DIN 933 / ISO 4014 / ISO 4017 / ANSI B18.2.1 / ASTM A325 / A193 B7
• Sizes: M6 to M72, and imperial sizes from 1/4" to 3"
• Material: Carbon steel, alloy steel 10B21 / 40Cr, stainless steel 304 / 316
• Grade: Class 4.8, 8.8, 10.9, 12.9 and ASTM grades 2, 5, 8
• Surface: Zinc plated, hot-dip galvanized, black oxide, Dacromet, Xylan
• Thread: Full thread or half thread, metric coarse or fine pitch
• Packing: 25 kg carton / 36 cartons per pallet, or per customer request

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What is an HS bolt?

HS bolt, comes from its full name high strength bolt, which are high strength bolts made from carbon steel or alloy steel, with quenched-tempered heat treatment. High strength bolts are usually grade 8.8, 10.9, 12.9. Among these, grade 10.9, HDG are the most common seen in the market.

What is the difference between a normal bolt and a high strength bolt?

The difference between a normal bolt and a high strength bolt lie in their material grade and manufacturing process. Normal bolts are usually made from low carbon steel and no need to be tempered heat treament, say grade 4.8, 5.8, while high strength bolts are high tensile bolts grade 8.8, 10.9, 12.9, A325, A490 etc. Ningbo Fastenwell as one of the leading high strength bolts manufatcurer in Ningbo, HS bolts grade 8.8 and 10.9, hot dip galvanized are our main products in regular manufacturing and exporting, especially for construction projects.

High Strength Bolts we Manufacture and Supply

• High Strength Bolt Grade 8.8
• High Strength Bolt Grade 10.9
• High strength bolt A325
• High strength bolt A490
• High Strength SB Bolts EN15048
• High Strength HV & HR Bolts EN 14399
• High strength bolts and nuts assemblies
• High Strength Bolt Hot Dip Galvanized

Product Detail

براغي HS | براغي عالية القوة | مصنع البراغي

Daosan is a leading bolt manufacturer in China with nearly twenty years of fastener production and export experience. Our bolts are cold forged, heat treated and thread rolled in house, then inspected for dimensional accuracy and mechanical properties before packing.

• Material: Carbon steel 1008 / 1010 / 1035, alloy steel 10B21 / 40Cr, stainless steel 304 / 316
• Surface: Plain, black oxide, zinc plated, hot-dip galvanized, Dacromet, Xylan, Teflon
• Application: Steel structures, bridges, machinery, automotive, oil and gas, wind energy towers
• Package: Small box or 25 kg carton, 36 cartons per pallet, or per customer request
• Delivery: 25 to 35 days for regular production after drawing approval
• Customized: Non-standard heads, lengths, threads and materials produced to your samples or drawings