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DIN603 Stainless steel mushroom head square neck bolts


DIN603 Stainless steel mushroom head square neck bolts

Head Features

Semi-circular head + square neck anti-rotation design

Rod Features

Short thread (1/3 rod length)

Core Purpose

Mainly used for joining wood and metal

Advantages and Features

Prevents bolts from rotating, suitable for softer materials such as wood

Typical Uses

Timber construction, furniture making, carriage and building structural connections

Key Indicators for Selection

Bolt length, diameter, thread type (e.g., coarse or fine), material choice (e.g., 304 or 316 stainless steel)

Industry-Specific Requirements

Furniture industry: requires a smooth appearance to avoid protruding bolt heads. Construction industry: needs to consider the bonding strength between wood and metal.

Product specification:

Mon M5 M6 M8 M10 M12 M16 M20
P 0.8 1 1.25 1.5 1.75 2 2.5
dk max 13.55 16.55 20.65 24.65 30.65 38.8 46.8
dk min 12.45 15.45 19.35 23.35 29.35 37.2 45.2
ds max 5 6 8 10 12 16 20
ds min 4.52 5.52 7.42 9.42 11.3 15.3 19.16
k1 max 4.1 4.6 5.6 6.6 8.75 12.9 15.9
k1 min 2.9 3.4 4.4 5.4 7.25 11.1 14.1
k max 3.3 3.88 4.88 5.38 6.95 8.95 11.05
k min 2.7 3.12 4.12 4.62 6.05 8.05 9.95
r max 0.5 0.5 0.5 0.5 1 1 1
s max 5.48 6.48 8.58 10.58 12.7 16.7 20.84
s mins min 4.52 5.52 7.42 9.42 11.3 15.3 19.16
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