Hex head bolt can be divided as full th↕∞™→read hex bolt DIN933 ε₽αand half-thread hex bolt DIN931$®€.

DIN933 hexagon bolt is s'$↑"imilar to ISO4017 and GB/T 5783.

DIN933 is a bolt sta¶♠αndarding for fully threade ×↕≥d hex bolt with thread diameᶶter M1.6 ~M52, product grade: Grade Aβ​, Grade B.  Gradeδ&  A, d≤24mm, l ≤10d or l ≤150m↑✔m. Grade B: d ＞24mm or l&nbΩ§ε∏sp;＞10d or 1＞150mm. Value for s, e,φα₩ k of grade A and Grade B are dΩ±λifferent.

In common orders, hex bolt are M3-☆§M64, with property class 8.8, 10.9®§ ∑, according to ISO 898-1.

Thread tolerance and Co噣₹ating: DIN933 he↔‌γ®x bolt thread should be cour>₹€↕se thread or fine thread, dimensio€ ↓n in mm. Tolerance for cββ←γourse thread is 6g. Coating methods∞<¶• are black oxide, ele​ &δctric galvanized, hot dip ga​♥lvanized, etc. Thread t€α∏olerance before threading should be÷♥  6g/6H, tolerance after coating should≥  be 6h/6g.