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Fastenio — Precision Fastening Solutions
M5 Carriage Bolts 18-8 Stainless Steel

M5 Carriage Bolts 18-8 Stainless Steel

SKU: FN-BLT-CB-M5-SS18· 2 lengths

Bulk-Only Item

Minimum order quantity: 250 pieces per pack. Ships 7 business days after your cart reaches the $500 bulk minimum — bulk-only and regularly-stocked items both count. Learn more →

$31.91/ 250 pcs

$0.13/ea

pack

1 pack × 250 = 250 pieces

In Stock
FN-BLT-CB-M5-20MM-SS18-PT-SQ-D603-PL
Free US shipping 30-day returns Ships ~7 business days

M5 round head square neck carriage bolts in 18-8 Stainless Steel to DIN 603. A carriage bolt has a smooth domed head with no drive and a square shoulder beneath it. Driven into a round hole in timber or a matching square hole in steel, the shoulder bites and holds the bolt against rotation so the assembly can be tightened from the nut alone, with nothing gripping the head. The low dome leaves no protruding drive to snag, collect water or be tampered with — standard in deck and fence framing, timber structures, trailer beds, playground and marine fit-out. Supplied fully threaded in 10mm. The 20mm lengths are partially threaded with the DIN 603 minimum thread length of 16mm. 2 lengths (10mm to 20mm). Sold in bulk multiples.

Material

Stainless Steel

Finish

Plain / Natural

Grade

18-8 (A2-70)

Size

M5

Head Style

round

Standard

DIN 603

Guides: 18-8 stainless steel vs. other grades

Technical Specifications

Thread SizeM5
StandardDIN 603
Head StyleRound (Dome)
Neck StyleSquare
Head Diameter13.55mm
Head Height3.3mm
Square Width5.48mm
Material Grade18-8 (A2)
FinishPlain