Lock Nut

Lock Nut – Product Details

JMIKS Fasteners supplies lock nuts (thin hex nuts, also called check nuts or jam nuts) in SS 304, SS 316 and SS 202, and in mild steel and high tensile grades, from M3 to M36 and ¼” to 1-1/4″ BSW.

Specifications

Standard : DIN / IS / AISI
Size : Metric : M3 To M36 / BSW : ¼” to 1-1/4”
Material Grade: SS304 | SS316 | SS202 | 4.6 |8.8 | 10.9 | 12.9
Finish : Zinc Plated , HDG , Self finish

How a Lock Nut Works

A lock nut is a thin hexagon nut that is tightened hard against a standard nut on the same bolt. The two nuts press against each other and stop either one from turning loose. The common standards are DIN 439, ISO 4035 and DIN 936 (fine thread).

For a lock nut with a nylon ring, see our nylock nuts.