Detail & Specs
Phillips JIS Truss Head Machine Screw / Stainless Steel
These screws have an oversized "truss" head style with an undercut bottom, low height rounded dome top and recessed phillips drive.
The flat bearing surface underneath the head covers a larger diameter than a typical pan head machine screw. This increased surface area reduces the chances of crushing or marring the material the screw is tightened against.
A truss-style head is the preferred design in applications where minimal clearance exists above the head. Suitable for license plates.
Machine thread screws can be used in a tapped hole or with a locking / non-locking nut. Length is measured from underneath the head.
Finish: Black Oxide
Attractive matte black finish
Abrasion resistant, does not peel, chip or rub off
Reduces friction, prevents galling
Does not change the strength of the stainless steel
Practically no dimensional change to base fastener
Specification
JIS B-1111 / Japanese Industrial Standard
Also known as metric truss machine screw or extra-wide mushroom head screw.
These screws have an oversized "truss" head style with an undercut bottom, low height rounded dome top and recessed phillips drive.
The flat bearing surface underneath the head covers a larger diameter than a typical pan head machine screw. This increased surface area reduces the chances of crushing or marring the material the screw is tightened against.
A truss-style head is the preferred design in applications where minimal clearance exists above the head. Suitable for license plates.
Machine thread screws can be used in a tapped hole or with a locking / non-locking nut. Length is measured from underneath the head.
Finish: Black Oxide
Attractive matte black finish
Abrasion resistant, does not peel, chip or rub off
Reduces friction, prevents galling
Does not change the strength of the stainless steel
Practically no dimensional change to base fastener
The black oxide coating per MIL-DTL-13924, Class 4 on 300 series corrosion resistant steel meets 96 hours of resistance in a 5% salt spray (fog) test in accordance with ASTM B117. We recommend using stainless steel installation tools to prevent extraneous rust.
Specification
JIS B-1111 / Japanese Industrial Standard
Also known as metric truss machine screw or extra-wide mushroom head screw.