SAE Carriage Bolts | McMaster-Carr

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Thread Type

System of Measurement

Thread Size

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Finish

Zinc Flake Coated

Zinc Yellow-Chromate Plated

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Threading

Partially Threaded

Fastener Head Type

Material

18-8 Stainless Steel

Neck Width

Head Diameter

Neck Length

Head Height

Thread Spacing

Tensile Strength

Thread Fit

Unified Standard Class 2A

Unified Standard Class 3A

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REACH

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457 Products

Carriage Bolts

Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts

Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts

Suitable for fastening most machinery and equipment

Low-Strength Steel Square-Neck Carriage Bolts

Low-Strength Steel Square-Neck Carriage Bolts

About half the strength of medium-strength bolts for light duty fastening

High-Strength Grade 8 Steel Square-Neck Carriage Bolts

High-Strength Grade 8 Steel Square-Neck Carriage Bolts

Often used in high-stress applications, such as valves, pumps, and motors

Medium-Strength Grade 5 Steel Knurled-Neck Carriage Bolts

Medium-Strength Grade 5 Steel Knurled-Neck Carriage Bolts

Grip the inside of the hole and stay put when tightening a nut

18-8 Stainless Steel Square-Neck Carriage Bolts

18-8 Stainless Steel Square-Neck Carriage Bolts

Good chemical resistance to water and mild chemicals such as cleaning solutions

Low-Strength Steel Knurled-Neck Carriage Bolts

Low-Strength Steel Knurled-Neck Carriage Bolts

Grip the inside of the hole and stay put for light duty fastening

Other Products

Plow Bolts

The head sits flush with countersunk holes while the bolt stays in place when tightening a nut

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)