DIN 933 Grade 8.8 Black Oxide Carbon Steel Hex Head Bolts

High-strength hex bolts in DIN 933 fully threaded and DIN 931 partially threaded designs, with multiple surface finishes for industrial fastening.


 Category:  Bolt

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Product Details
Standard No.: DIN931 & DIN933

DIN931 / DIN933 Hexagon Head Bolt

DIN931 partial thread & DIN933 full thread German standard hexagon high-strength bolts, grade 8.8/10.9/12.9, black oxide finish, widely used for general machinery and engineering assembly
Fastener DIN931 bolt DIN933 bolt Hex bolt High strength bolt
1 Product Attributes (General specification)
Product Name DIN931 (Partial Thread) & DIN933 (Full Thread) Hexagon Head High Strength Bolt
Standard DIN931 (Partial Thread), DIN933 (Full Thread)
Material Alloy carbon steel, Grade 8.8 / 10.9 / 12.9
Surface Treatment Black oxide finish
Structure Hex head; DIN931: partial thread shank; DIN933: full thread, metric coarse thread
Origin Hebei · Handan · Yongnian — Integrated Manufacturer & Exporter
MOQ 100 Pcs (negotiable for trial orders)
2 Performance Parameter (Reference data)
Strength Grade 8.8, 10.9, 12.9
Thread Tolerance 6g
Feature High tensile strength, stable mechanical performance. DIN931 partial thread for thick workpiece compression connection; DIN933 full thread for thin parts, multi-gasket and adjustable assembly
Working Temperature -40 ℃ ~ +120 ℃
Service Life Suitable for machinery, equipment and general industrial assembly
3 Optional Types
Black Oxide Standard option, wear-resistant, for indoor general industrial assembly
Hot Dip Galvanized Custom available, good anti-corrosion, for outdoor and coastal environment
Zinc plated(Blue white zinc / Color zinc) Custom available, low-cost anti-rust surface treatment
4 Size Table (Common models)
Common specifications of DIN931 & DIN933 high strength hex bolt, two thread versions optional, custom length available upon request.
Model Thread Size Thread Pitch(mm) Available Length Range(mm) Grade Option Available Type
HB-M6 M6 1.0 20 ~ 60 8.8 DIN931 / DIN933
HB-M8 M8 1.25 25 ~ 80 8.8 /10.9 DIN931 / DIN933
HB-M10 M10 1.5 30 ~ 100 8.8 /10.9 /12.9 DIN931 / DIN933
HB-M12 M12 1.75 35 ~ 120 10.9 /12.9 DIN931 / DIN933
HB-M16 M16 2.0 40 ~ 160 10.9 /12.9 DIN931 / DIN933
HB-M20 M20 2.5 50 ~ 200 10.9 /12.9 DIN931 / DIN933
5 Applications & Packaging
Applications Mechanical equipment, engineering machinery, pump and valve assembly, vehicle chassis, automation equipment, industrial frame fastening. DIN931 preferred for thick plate connection; DIN933 suitable for thin parts, spacer and adjustable assembly.
Packaging Woven bag or wooden pallet, waterproof stretch film wrapped
Documents PI, Packing List, Certificate of Origin, Mill Test Certificate
Payment Terms 30% T/T in advance, balance before shipment
Lead Time 3–7 days for regular stock, 7–15 days for customized specifications
6 Related Tags
DIN931 bolt DIN933 bolt hex head bolt full thread bolt partial thread bolt high strength fastener German standard bolt

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Please tell us thread size, length, thread type (DIN931 partial thread or DIN933 full thread) and strength grade you need. We supply DIN931 & DIN933 high strength hexagon bolts for industrial machinery assembly.

Email: info@kangnaigu.net



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