Value Collection 489022PR Carriage Bolt 1/4-20 1-1/2 in Grade 2 Zinc

Product Description

The VALUE COLLECTION 489022PR is a 1/4-20 UNC carriage bolt with a 1-1/2 inch length under head, manufactured from Grade 2 steel with a zinc-plated finish. The square neck under the domed head resists rotation as the nut is driven, eliminating the need for a wrench on the bolt side. This fastener meets ASTM A307 standards and is suited for general-purpose structural and mechanical assembly work. Typical installers include carpenters, millwrights, and maintenance technicians working on wood-to-wood or wood-to-metal connections requiring a clean, low-profile bolt head.

This carriage bolt is used in light structural applications including wood framing, fence construction, playground equipment, and equipment mounting. The zinc plating provides baseline corrosion resistance for indoor and sheltered outdoor environments. The 1/4-20 UNC thread is one of the most common coarse-thread fastener sizes in inch-standard construction and maintenance applications. Sold in multiples of 100 per minimum order.

Key Features

• 1/4-20 UNC coarse thread for broad tool and hardware compatibility
• 1-1/2 inch length under head suits standard light-duty structural connections
• Square neck under head locks into wood or slotted material to prevent spinning during installation
• Grade 2 steel construction meets ASTM A307 fastener standard
• Zinc-plated finish provides corrosion resistance in sheltered and indoor environments
• Rounded dome head delivers a smooth, low-profile exterior face

Compatibility

Designed as a standard inch-system carriage bolt suitable for general-purpose wood and light metal assembly applications requiring a 1/4-20 UNC thread and 1-1/2 inch grip length.

Installation Notes

Installation requires drilling a clean through-hole sized to the bolt shank diameter so the square neck seats flush and grips the material without spinning. A flat washer and hex nut are typically used on the bearing side; torque the nut with a standard wrench while the domed head bears against the surface. Power down or de-energize any associated equipment before fastening into panels or enclosures. Follow applicable building codes and project specifications for structural fastener placement and spacing.