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Hexagon Head Bolt Partial Thread

A hex head bolt with a smooth shank and thread only near the end, tightened with a standard spanner or socket. It passes through clearance holes and is clamped with a nut on the threaded end. Typical uses: steel structures, machinery and flange joints.

In stockShips within 3 working daysMade to orderShips within 15 working days

M4 × 0.776 variantsb14s7max.k2.8
LengthmmMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
25Stainless SteelA2-70PassivatedIn stock1,0003.10
25Stainless SteelA2-70PlainIn stock1,0003.10
25Stainless SteelA4-80PassivatedIn stock1,0003.10
25Stainless SteelA4-80PlainIn stock1,0003.10
25Carbon SteelClass 4.8PlainIn stock1,0003.07
25Carbon SteelClass 4.8Zinc PlatedIn stock1,0003.09
25Carbon SteelClass 4.8DacrometIn stock1,0003.09
25Carbon SteelClass 4.8PhosphateIn stock1,0003.07
25Carbon SteelClass 4.8BlackenedIn stock1,0003.07
25Carbon SteelClass 8.8PlainIn stock1,0003.07
25Carbon SteelClass 8.8Zinc PlatedIn stock1,0003.09
25Carbon SteelClass 8.8DacrometIn stock1,0003.09
25Carbon SteelClass 8.8PhosphateIn stock1,0003.07
25Carbon SteelClass 8.8BlackenedIn stock1,0003.07
25Alloy SteelClass 10.9PlainIn stock1,0003.07
25Alloy SteelClass 10.9Zinc PlatedIn stock1,0003.09
25Alloy SteelClass 10.9DacrometIn stock1,0003.09
25Alloy SteelClass 10.9PhosphateIn stock1,0003.07
25Alloy SteelClass 10.9BlackenedIn stock1,0003.07
30Stainless SteelA2-70PassivatedIn stock1,0003.60
30Stainless SteelA2-70PlainIn stock1,0003.60
30Stainless SteelA4-80PassivatedIn stock1,0003.60
30Stainless SteelA4-80PlainIn stock1,0003.60
30Carbon SteelClass 4.8PlainIn stock1,0003.56
30Carbon SteelClass 4.8Zinc PlatedIn stock1,0003.59
30Carbon SteelClass 4.8DacrometIn stock1,0003.58
30Carbon SteelClass 4.8PhosphateIn stock1,0003.56
30Carbon SteelClass 4.8BlackenedIn stock1,0003.56
30Carbon SteelClass 8.8PlainIn stock1,0003.56
30Carbon SteelClass 8.8Zinc PlatedIn stock1,0003.59
30Carbon SteelClass 8.8DacrometIn stock1,0003.58
30Carbon SteelClass 8.8PhosphateIn stock1,0003.56
30Carbon SteelClass 8.8BlackenedIn stock1,0003.56
30Alloy SteelClass 10.9PlainIn stock1,0003.56
30Alloy SteelClass 10.9Zinc PlatedIn stock1,0003.59
30Alloy SteelClass 10.9DacrometIn stock1,0003.58
30Alloy SteelClass 10.9PhosphateIn stock1,0003.56
30Alloy SteelClass 10.9BlackenedIn stock1,0003.56
35Stainless SteelA2-70PassivatedIn stock1,0004.10
35Stainless SteelA2-70PlainIn stock1,0004.10
35Stainless SteelA4-80PassivatedIn stock1,0004.10
35Stainless SteelA4-80PlainIn stock1,0004.10
35Carbon SteelClass 4.8PlainIn stock1,0004.06
35Carbon SteelClass 4.8Zinc PlatedIn stock1,0004.09
35Carbon SteelClass 4.8DacrometIn stock1,0004.08
35Carbon SteelClass 4.8PhosphateIn stock1,0004.06
35Carbon SteelClass 4.8BlackenedIn stock1,0004.06
35Carbon SteelClass 8.8PlainIn stock1,0004.06
35Carbon SteelClass 8.8Zinc PlatedIn stock1,0004.09
35Carbon SteelClass 8.8DacrometIn stock1,0004.08
35Carbon SteelClass 8.8PhosphateIn stock1,0004.06
35Carbon SteelClass 8.8BlackenedIn stock1,0004.06
35Alloy SteelClass 10.9PlainIn stock1,0004.06
35Alloy SteelClass 10.9Zinc PlatedIn stock1,0004.09
35Alloy SteelClass 10.9DacrometIn stock1,0004.08
35Alloy SteelClass 10.9PhosphateIn stock1,0004.06
35Alloy SteelClass 10.9BlackenedIn stock1,0004.06
40Stainless SteelA2-70PassivatedIn stock1,0004.60
40Stainless SteelA2-70PlainIn stock1,0004.60
40Stainless SteelA4-80PassivatedIn stock1,0004.60
40Stainless SteelA4-80PlainIn stock1,0004.60
40Carbon SteelClass 4.8PlainIn stock1,0004.55
40Carbon SteelClass 4.8Zinc PlatedIn stock1,0004.58
40Carbon SteelClass 4.8DacrometIn stock1,0004.57
40Carbon SteelClass 4.8PhosphateIn stock1,0004.55
40Carbon SteelClass 4.8BlackenedIn stock1,0004.55
40Carbon SteelClass 8.8PlainIn stock1,0004.55
40Carbon SteelClass 8.8Zinc PlatedIn stock1,0004.58
40Carbon SteelClass 8.8DacrometIn stock1,0004.57
40Carbon SteelClass 8.8PhosphateIn stock1,0004.55
40Carbon SteelClass 8.8BlackenedIn stock1,0004.55
40Alloy SteelClass 10.9PlainIn stock1,0004.55
40Alloy SteelClass 10.9Zinc PlatedIn stock1,0004.58
40Alloy SteelClass 10.9DacrometIn stock1,0004.57
40Alloy SteelClass 10.9PhosphateIn stock1,0004.55
40Alloy SteelClass 10.9BlackenedIn stock1,0004.55
Need another length in M4?Made to order · ask for a price

76 combinations shown

Matching components

Hexagon Full Nut DIN 934Hex NutDIN 934 · M3–M36Nylon Insert Lock Nut DIN 985Nylon Insert Lock NutDIN 985 · M3–M36Serrated Hex Flange Nut DIN 6923Serrated Hex Flange NutDIN 6923 · M5–M20Flat Washer, Form A DIN 125Flat WasherDIN 125 · M3–M36Heavy Flat Washer for Spring Pin Bolts DIN 7349Heavy Duty Flat WasherDIN 7349 · M3–M24Spring Washer, Form B (Split) DIN 127Split Spring WasherDIN 127 · M3–M36

Questions

DIN 931 has been withdrawn — is ISO 4014 the same part?

In the sizes we list, only the wrench size differs: M10 is 17 mm on DIN 931 against 16 mm on ISO 4014 and M12 is 19 mm against 18 mm. M4, M5, M6, M8, M16, M20 and M24 are the same in both. We still make it to the DIN 931 table for existing drawings.

Why is there no hot-dip galvanized option below M8?

The zinc layer is too thick for smaller threads, so hot-dip galvanizing starts at M8.

Partial thread or full thread?

Partial thread keeps a smooth shank across the joint, which is stronger against side load and lines the parts up more accurately. Full thread suits tapped holes and short joints where the nut runs up to the head.

Order assurance

Reports & inspection

  • EN 10204 3.1 material certificate
  • Dimensional inspection report
  • Certificate of conformity
  • Mechanical test report
  • Chemical analysis report
  • Coating inspection report
  • Batch and lot traceability

Packaging & delivery

  • Bulk carton packing
  • Small boxes with outer cartons
  • Palletized shipment
  • Fumigation-free pallets
  • Inner poly bags
  • Buyer branding and labels

Related products

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