1/2-13x4" Carriage Bolts, A307 Grade A, ECHO

The 1/2-13x4" Carriage Bolts are manufactured to A307 Grade A standards, produced by ECHO GROUP INC. These bolts are designed for strength and durability, making them suitable for a variety of fastening applications. With a thread size of 1/2-13 and a length of 4 inches, they are ideal for use in wood and metal connections. The smooth, rounded head design allows for easy installation and a clean finish. This product meets industry standards for quality and performance, ensuring reliability in both professional and DIY projects.

Description

BBI Carriage Bolt, Fully Threaded, Measurement System: Imperial, 1/2-13 Thread, 4 in Length Under Head, Low Carbon Steel, A Grade, Zinc CR+3, 1.094 in Diameter Head, 0.281 in Neck, Square Neck, 60000 psi Tensile Strength, 0.515 in Drive, UNC Thread, Square Drive, B70 to B100 Hardness, Material Specification: ASTM A307, Round Head

Standards/Approval:

• ANSI/ASME B18.5

Diameter - Thread Size	1/2-13
Drive Size	0.515 in
Drive Type	Square
Finish	Zinc CR+3
Grade	A
Hardness	B70 to B100
Head Diameter	1.094 in
Head Type	Round
Length Under Head	4 in
Material	Low Carbon Steel
Material Specification	ASTM A307
Measurement System	Imperial
Neck Size	0.281 in
Neck Type	Square
Tensile Strength	60000 psi
Thread Type	UNC
Type	Fully Threaded
Manufacturer	Approved Supplier

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