carriage bolts

Square-necked hardware pieces

Carriage bolts are fasteners with a smooth, rounded head and a square section just below it.

The square neck pulls into wood when tightened, preventing the bolt from spinning.

This allows tightening from one side only—useful when the head is inaccessible.

The deck railings were secured with carriage bolts.

fastening

thread

Fiber for stitching

  • nutHard-shelled seed
  • washerSpacer ring for fasteners
  • hexMalevolent incantation

shank · tighten · anchor · wrench · torque · tension · countersunk · flange · locknut · coupling

furniture

bedframe

Mattress-supporting structure

  • benchShared seating surface
  • tableHorizontal furniture surface
  • chairSingle-person sitting furniture

bookshelf · cabinet · workbench · shelving · armoire · dresser · futon · desk · headboard · footboard

materials

steel

Carbon-hardened iron alloy

brass · chrome · hot-dipped · weatherproof · rust-resistant · hardened · tempered · coated · plated · anodized

industrial

manufacturing

Industrial product creation

blueprints · metalworking · welding · CNC · tooling · production · equipment · machinery · heavy-duty · specification

construction

joinery

Fitting wood pieces together

framing · decking · joist · beam · post · lumber · timber · pergola · gazebo · playground

design

tamper-resistant

Difficult to interfere with

exposed · countersink · round-top · anti-spin

Categories
Opposites
head style and drive mechanism

carriage boltshex bolts

Threaded fasteners with six-sided heads

Allen bolts · machine screws · lag bolts · eye bolts · U-bolts

Family

carriage, bolt, carriages, bolts, carry, carrier, carriers, carried, carrying

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G