High-performance knurled shank collated drive pins designed for powder-actuated applications requiring maximum pull-out resistance and vibration resistance. JLHY's 33 years of industrial nail manufacturing includes specialized knurling machines that apply a precise textured pattern to the shank — the knurling bites into concrete and steel fibers to lock the pin in place permanently, even under dynamic load conditions. These pins are the preferred choice for highway guardrails, bridge deck attachments, industrial steel connections, and any application where fastener failure is not an option.

JLHY produces knurled drive pins in hardened carbon steel with shank diameters from 0.105" to 0.120" and lengths from 3/4" to 2", with mechanically galvanized or hot-dip galvanized finish for corrosion protection.

Our in-house metallurgical lab conducts regular pull-out tests to verify holding power consistency across batches. We serve infrastructure contractors, transportation authorities, and construction fastener distributors with technical data sheets, batch test certificates, and reliable global shipping from our Tianjin factory facility.