Hex Key (inch) Bondhus 0.035" — length 31 mm, model BO13801

Bondhus inch hex key 0.035" with a 31 mm overall length (model BO13801) is a precision short-length Allen key designed for use with inch-thread fasteners. Constructed for compact access, this hex key suits fine mechanical tasks where small screws and set screws require accurate turning. The shortened length provides control in confined spaces while maintaining sufficient reach for recessed fasteners.

Advantages

This 0.035" Bondhus hex key offers high dimensional accuracy and a compact form factor that simplifies work in tight assemblies. The short 31 mm overall length reduces leverage but increases maneuverability and control, making it suitable for delicate adjustments. Designed for inch-thread fasteners, it minimizes rounding of screw heads when used with the correct torque and fit.

Suitable for

• Electronics assembly and repair
• Instrument and gauge adjustment
• Model making and hobby applications
• Precision machinery and small fastener maintenance

Key specifications

• Hex size: 0.035 inch
• Overall length: 31 mm
• Type: short-length hex key (Allen key) for inch fasteners
• Intended use: turning small screws and set screws in confined spaces

How to use

Select the 0.035" hex key for compatible inch-head screws, inserting the hex into the screw recess until it seats fully. Apply controlled torque appropriate for the screw size to tighten or loosen, keeping the tool aligned with the screw axis to avoid cam-out or rounding. For recessed screws, the short length allows access where longer keys would interfere with surrounding components.

Usage recommendations

Use the tool only on properly sized inch fasteners to prevent damage. Inspect the hex key for wear before use; replace it if edges are rounded. When greater torque is required, use a properly matched tool with longer leverage rather than forcing the short key.