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

Products

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

square head lag bolts Square Head Bolts

Abstract: Jiangsu Zhenya Special Screw Co.,Ltd is one of the leading China square head bolts manufacturers and suppliers, as a professional company, our productive factory is able to produce CE certification square head bolts at both high quality and low price. Welcome to buy discount and cheap, or wholesale products from us.
Detailed description

Jiangsu Zhenya Special Screw Co.,Ltd is one of the leading China square head bolts manufacturers and suppliers, as a professional company, our productive factory is able to produce CE certification square head bolts at both high quality and low price. Welcome to buy discount and cheap, or wholesale products from us.

Square Head Bolts offer a large bearing area for positive gripping with an open or adjustable wrench. Length is measured from under the head. Head width or wrench size is measured across the flats. Plain finish, or bare metal, may or may not have a coating of light oil to resist corrosion

Square Head Bolts,

The information below lists the required dimensional, chemical and physical characteristics of the fasteners in this purchase order. If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your status as an approved vendor. Unless otherwise specified, all referenced consensus standards must be adhered to in their entirety.


E

F

H

R

LT

Nomial   Size or

Thread Length for

Basic Product

Full-Size Body

Width   Across Flats

Head Height

Radius of

Bolts Lengths

Diameter

Diameter

Fillet

6 in. and

Over 6 in.

Shorter

Max

Min

Basic

Max

Min

Basic

Max

Min

Max

Min

Nom

1/4

0.2500

0.260

0.237

3/8

0.375

0.362

11/64

0.188

0.156

0.750

1.000

5/16

0.3125

0.324

0.298

1/2

0.500

0.484

13/64

0.220

0.186

0.03

0.01

0.875

1.125

38

0.3750

0.388

0.360

9/16

0.562

0.544

1/4

0.268

0.323

1.000

1.250

7/16

0.4375

0.452

0.421

5/8

0.625

0.603

19/64

0.316

0.278

1.125

1.375

1/2

0.5000

0.515

0.482

3/4

0.750

0.725

21/64

0.348

0.308

1.250

1.500

5/8

0.6250

0.642

0.605

15/16

0.938

0.906

27/64

0.444

0.400

0.06

0.02

1.500

1.750

3/4

0.7500

0.768

0.729

1-1/8

1.125

1.088

1/2

0.524

0.476

1.750

2.000

7/8

0.8750

0.895

0.852

1-5/16

1.312

1.269

19/32

0.620

0.568

2.000

2.250

1

1.0000

1.022

0.976

1-1/2

1.500

1.450

21/32

0.684

0.628

2.250

2.500

1-1/8

1.1250

1.149

1.098

1-11/16

1.688

1.631

3/4

0.780

0.720

0.09

0.03

2.500

2.750

1-1/4

1.2500

1.277

1.223

1-7/8

1.875

1.812

27/32

0.876

0.812

2.750

3.000

1-3/8

1.3750

1.404

1.345

2-1/16

2.062

1.994

29/32

0.940

0.872

3.000

3.250

1-1/2

1.5000

1.531

1.470

2-1/4

2.250

2.175

1

1.036

0.964

3.250

3.500


Specification Requirements:

Dimensions: ASME B18.2.1
Material &Mechanical Properties: ASTM A307, Grade A
Thread Requirements: ASME B1.1, UNC & UNF, Class 2A
Finish:Light Protective Oil
Head Marking: Manufacturer ID and 307A

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