Nsi Industries jbls344g Hex Lag Bolt Galvanized 20 Pack

Product Description

The NSI INDUSTRIES jbls344g is a galvanized steel hex lag bolt designed for fastening into wood and similar substrates in corrosive or outdoor environments. The bolt features a full-bodied shank, a standard hex head for wrench-driven installation, spaced coarse threads for strong wood bite, and a gimlet point that self-starts without pre-drilling in many applications. At 3/4 inch in diameter and 4 inches in length, this lag bolt is suited for heavy-duty structural fastening tasks common in electrical, utility, and general trade work. Each jar contains 20 bolts.

This lag bolt is used in applications where corrosion resistance is required, such as outdoor electrical enclosure mounting, ground rod and equipment anchoring, utility pole hardware, and structural connections exposed to moisture or chemical environments. The galvanized finish makes it appropriate for treated lumber and other corrosive contact surfaces. Trade professionals in electrical, construction, and utility maintenance will find this a standard fastener for field and panel work.

Key Features

• Galvanized finish provides corrosion resistance for outdoor and corrosive environment use
• Full-bodied steel shank delivers high shear and withdrawal strength
• Hex head allows installation with standard wrenches or impact drivers
• Spaced thread pattern optimized for wood and structural substrate fastening
• Gimlet point for self-starting entry without pilot hole in many applications
• Sold in a jar of 20 for convenient field and shop storage

Compatibility

Designed as an OEM-style replacement or standard-stock hex lag bolt suitable for electrical, utility, and general construction fastening applications requiring a galvanized 3/4 x 4 inch lag bolt.

Installation Notes

Installation is typically performed by electricians, utility technicians, or general construction trades using a socket wrench or impact driver sized to the hex head. A pilot hole is recommended in dense or hardwood substrates to prevent splitting and ensure proper seating. Follow applicable NEC or local structural code requirements when using lag bolts for equipment mounting or grounding hardware. Do not overtighten, as this can strip the substrate or compromise the galvanized coating at the shank.

Technical Specifications

• Material: Steel
• Finish: Galvanized
• Bolt Size: 3/4 x 4 inches
• Thread Size: 3/8-7
• Diameter: 3/8 inches
• Outside Diameter: 0.360 to 0.388 inches
• Head Type: Hex
• Point Type: Gimlet
• Quantity: 20 per jar
• Prop 65: No
• UPC: 639720198348

Standard Information

• Brand: NSI INDUSTRIES
• Manufacturer Part Number: jbls344g