Duplex (double head) collated nails in 21° plastic strip format — the professional contractor's choice for concrete formwork, scaffolding, and temporary construction staging.

JLHY, with 33 years of nail manufacturing since 1993, produces duplex nails with precisely forged double heads: the lower bearing head secures the workpiece while the upper extraction head enables rapid, damage-free removal. Our automated multi-stage heading machines produce consistently spaced dual heads without deformation that causes jams in nailers.

The 21° plastic strip collation runs smoothly in all major pneumatic nailers designed for duplex nails. Available in gauge 8-10 with lengths from 1-3/4" to 4", in bright, electro galvanized, or hot dip galvanized finishes.

JLHY supplies duplex nails to concrete formwork contractors, scaffolding companies, and construction rental equipment distributors worldwide. Our 20,000 m² Tianjin facility offers container consolidation, palletization, and flexible MOQ for international buyers. Backed by ISO-quality management and 33 years of export experience to 50+ countries.