1- Specification:M4-M6(bolt&nut)

2-Material:matal

 Advantage:

1.High quality and durable in use

2.Strict technique

3.Nice style and best price

Our manufactured products include: track (rail), garage door opener (garage door motor), stainless steel garage door parts, industrial door motor, hinge (hinge), the wheel, L angle iron (L angle yards), sword angle Iron (flag-shaped angle iron or angle iron rail connection), the horizontal angle iron rail connections, handle (handle, handle), bottom round frame, anti-fall at the end of round frame, round top shelf, top of the axle seat, rope, pulley ( reels, aluminum pulley, wire wheel), bearing bracket (day bar bracket or pipe mounting bracket), torsion (spring), extension spring, torsion spring joints, seals (side seal, bottom seal), industrial door locks, emergency lock garage doors, etc. Materials include galvanized, aluminum, stainless steel and so on. Surface spray, electroplating, etc.