Klein Tools 3258 Bull Pin 12in X 1-3/16in 7/16in Pilot

Product Description

The KLEIN TOOLS 3258 is a structural bull pin designed for aligning bolt holes in steel members during iron work and steel erection. The pin measures 12 inches in overall height with a top diameter of 1-3/16 inches and a 7/16 inch pilot diameter, giving ironworkers the taper needed to draw misaligned holes into register before bolts are set. Constructed from heat-treated steel with a black finish, the 3258 is built for repeated use under the impact and prying loads common in structural steel work. At 2.1 pounds, it carries enough mass to seat reliably without becoming a burden on the belt.

Bull pins of this type are standard equipment for ironworkers, structural steel fabricators, and erection crews working on commercial and industrial framing, bridge work, and pre-engineered building systems. The 3258 is suited for use wherever OSHA-regulated structural steel erection practices apply. It is typically carried on a bolt bag alongside spud wrenches and drift pins as part of a standard connection kit during column, beam, and decking installation.

Key Features

• 12 inch overall height provides reach into deep or partially obstructed connections
• 7/16 inch pilot diameter for precise hole engagement during alignment
• 1-3/16 inch top diameter delivers the taper needed to draw holes into register
• Heat-treated steel construction resists deformation under repeated impact
• Black finish provides corrosion resistance in outdoor structural environments
• Meets applicable OSHA structural steel erection standards

Compatibility

Designed as an OEM-style structural alignment tool suitable for use in standard structural steel bolt hole applications where a 7/16 inch pilot diameter bull pin is specified.

Installation Notes

Bull pins are installed and removed by ironworkers during structural steel erection and should be used strictly as alignment tools, not as permanent fasteners. Always ensure the structure is adequately braced and that no load is transferred through the pin before bolts are fully installed and torqued per project specifications. Wear appropriate PPE including gloves and fall protection when working at elevation. Follow OSHA 29 CFR 1926 Subpart R requirements for structural steel erection.

Technical Specifications

• Overall Height: 12 inches
• Top Diameter: 1-3/16 inches
• Pilot Diameter: 7/16 inches
• Material: Heat-treated steel with black finish
• Weight: 2.1 pounds
• Applicable Standard: OSHA
• Sold As: Each

Standard Information

• Brand: KLEIN TOOLS
• Manufacturer Part Number: 3258