Authorized NSI Industries Distributor
NSI Industries BBH37 - Bolt, 1/2-13 in. size, 4 in. length, Hex head, Silicon Bronze, 50 per pack
NSI Industries

BBH37

Alternate Item Number: 12647

UPC: 639720126471

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 50

Multiplier: 50

*Contact for lower quantities*

Overview

The NSi Industries BBH37 is a precision-engineered Silicon Bronze Hex Head Bolt designed for harsh environments where corrosion resistance and mechanical strength are critical. This 1/2-13 x 4-inch bolt features a durable hex head for easy installation and removal using standard tools. Constructed from silicon bronze, it delivers exceptional resistance to saltwater, chlorides, and chemical exposure, making it ideal for marine, chemical processing, and outdoor structural applications. Key specifications include a 1/2-inch diameter with 13 threads per inch, a 4-inch overall length, and a hex head width of 3/4 inch. Each pack contains 50 bolts, optimized for bulk procurement in industrial projects. NSi Industries, a US-based manufacturer, ensures compliance with stringent industry standards for structural and mechanical fasteners. The silicon bronze composition provides superior tensile strength and dimensional stability compared to standard steel fasteners, reducing maintenance costs in corrosive environments. Common applications include marine hardware, chemical processing equipment, water treatment facilities, and coastal construction projects. The bolt’s compatibility with standard hex wrenches and its corrosion-resistant properties eliminate the need for additional protective coatings, simplifying installation and reducing long-term costs.
  • Material: Silicon Bronze for superior corrosion resistance in marine and chemical environments
  • Thread Size: 1/2-13 (coarse thread, 13 threads per inch)
  • Length: 4 inches (fully threaded)
  • Head Type: Hex head (3/4" width) for standard tool compatibility
  • Pack Quantity: 50 bolts per pack for bulk industrial applications
  • Country of Origin: USA (NSi Industries)
  • UNSPSC Code: 31162103 (Fasteners, Bolts, Hex Head)

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Head Type
Hex
Length
4 IN
Material
Silicon Bronze
Size
1/2-13 IN
Type
Cap Screw
Package Dimensions (L x W x H)
7.25 IN x 6.75 IN x 3.25 IN
Package Dimensions (L x W x H)
18.415 cm x 17.145 cm x 8.255 cm
Package Weight (Imperial)
12.700 L
Package Weight (Metric)
5.761 kg
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Frequently Asked Questions

What product series does this specification sheet cover?

This specification sheet applies to all Hex Bolts - Silicon Bronze in the BBH and JBBH series.

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