Adjustment and Ball-Head Screws
Custom adjustment screws, ball-head screws, threaded pins, special drive screws, and small functional fasteners for position control, linkage, and assembly applications.
Jinhua Machinery supports made-to-drawing fastener-related parts for automotive, new energy vehicle, machinery, electric motor, home appliance, and industrial equipment assemblies.
Send drawings, samples, material grade, thread requirements, strength class, coating needs, quantity, and application details. Our team reviews manufacturability, forming or machining route, inspection points, and repeatable production planning before quotation.
Custom adjustment screws, ball-head screws, threaded pins, special drive screws, and small functional fasteners for position control, linkage, and assembly applications.
Weld studs, weld bolts, flange nuts, projection weld nuts, and threaded weld components for body, bracket, chassis, and sheet-metal assemblies.
Machined bases, threaded inserts, collars, bushings, bosses, and mounting components for reliable location, load transfer, and assembly fit.
High-strength bolts, nuts, studs, pins, threaded sleeves, and fastening hardware reviewed for grade, coating, torque, and production consistency.
Fastener programs are planned around thread geometry, head or flange form, weld features, hardness, coating, torque requirements, mating components, and stable delivery.
We review whether cold forming, machining, welding features, or combined processes fit the part geometry, tolerance target, material grade, and annual demand.
External threads, internal threads, knurls, shoulders, locating faces, flange surfaces, and mating features can be planned around assembly requirements.
Quenching, tempering, carburizing, zinc plating, zinc-nickel, black oxide, and corrosion protection can be reviewed according to application environment.
Critical dimensions, thread gauges, torque requirements, hardness, coating thickness, weld interface, surface finish, and packaging needs are considered before production.
Yes. We support drawing-based fastener-related components including adjustment screws, ball-head screws, weld bolts, weld nuts, threaded bases, inserts, high-strength bolts, nuts, studs, and custom formed or machined parts.
Yes. Heat treatment, zinc plating, zinc-nickel, black oxide, corrosion protection, and other finishing requirements can be reviewed based on material, strength target, and application environment.
Please send drawings or samples, material grade, strength class, thread specification, coating or surface treatment, quantity, application, inspection needs, and packaging requirements when available.
Upload drawings through the quote form, or send part details by email. Include material, quantity, thread requirements, heat treatment, plating, application, and inspection needs when available.