+86-755-23894509-816herry@cnzhenya.com

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Jiangsu Zhenya Special Screw Co.,Ltd

Tel: 86-755-23894509

Fax: 86-755-23894519

Atten: henry liu

Email: herry@cnzhenya.com

skype: forcelink.fl

Add: No.8, Yannin Highway, Dainan Town, Xinghua City, Jiangsu, China

Flat Head Square Neck Carriage Bolts

Flat Head Square Neck Carriage Bolts

Carriage bolts (round head with square neck) are commonly used in wood connections. The square neck under the round head will seat into the hole in the wood to prevent the head from turning. Because t

Product Details

Carriage bolts (round head with square neck) are commonly used in wood connections. The square neck under the round head will seat into the hole in the wood to prevent the head from turning. Because they are used with wood, carriage bolts are of rarely high strength.

Carriage Dimensions


D

C

H

P

F

Bolt Diameater

Body Diameter

Head Diameter

Head Height

Square Width

Square Depth


Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

3/8

0.388

0.360

0.844

0.782

0.208

0.188

0.388

0.368

0.219

0.188

1/2

0.515

0.483

1.094

1.032

0.270

0.250

0.515

0.492

0.281

0.250

5/8

0.642

0.605

1.344

1.219

0.344

0.313

0.642

0.616

0.344

0.313

3/4

0.768

0.729

1.594

1.469

0.406

0.375

0.768

0.741

0.406

0.375

7/8

0.895

0.852

1.844

1.719

0.469

0.438

0.895

0.865

0.469

0.438

1

1.022

0.976

2.094

1.969

0.531

0.500

1.022

0.990

0.531

0.500

1-1/4*

1.277


2.850


0.531

0.500

1.250


0.625


Dimensions per ASME B18.5 1990 (R 1998) cover diameters up to 1".Bolts over 1" use custom head dimensions

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