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Better Fastener Industry Co., Ltd. manufactures Hand Screw fasteners with enlarged knurled or winged heads for tool-free finger operation. Our range covers wing screws, thumb screws and low-profile knurled screws in carbon steel and stainless steel, supplied to DIN and ASME/ANSI dimensional standards for access panels, instrument enclosures, filter housings and service covers.
Founded in 2001 as a washer factory and expanded in 2010 into a comprehensive fastener enterprise, we consolidate screws, bolts, nuts and washers into one specification-led supply program. Hand screws sit within our Hand Screw supplier range alongside slotted, Phillips, hexagon socket, Torx and set screws, so a single project can be quoted across several screw families.
What Our Hand Screw Range Covers
Hand screws carry an oversized grip surface that generates enough manual torque to retain panels, covers and light-duty mechanical joints without a screwdriver or wrench. Knurled and wing profiles prevent slipping during moderate rotation, while the shank thread engages the mating hole or nut in the same way as a conventional machine screw.
We produce these parts in carbon steel and stainless steel shanks with plastic or metal heads, following DIN 464, DIN 465 and equivalent international specifications. The table below maps our standard hand screw types to their governing standards and typical installation points.
| Hand Screw Type | Reference Standard | Head Form | Typical Fit |
|---|---|---|---|
| Wing Screw | DIN 316:2016 | Two-wing, high grip | Frequent open/close covers, filter housings |
| Square Wing Wing Screw | ASME/ANSI B18.17:1968 | Square wing | Inch-series equipment, North American drawings |
| Type B Standard Thumb Screw | ASME/ANSI B18.17:1968 | Knurled cylindrical | Instrument panels, electronic enclosures |
| Low Profile Knurled Thumb Screw | DIN 653:2006 | Low knurled shoulder | Recessed panels, tight clearance assemblies |
Application Fit Across Equipment Types
Hand screws are specified where a joint must be opened and reclosed repeatedly during routine maintenance, or where the end user operates the fastener without tools. The oversized head acts as the lever arm; the thread provides the clamping force. That combination suits laboratory instruments, test equipment, electronic enclosures, automotive interior panels and outdoor machinery access points.
- Inspection and service covers: wing screws reduce access time where panels are opened on a fixed maintenance interval.
- Filter housings and instrument enclosures: knurled thumb screws allow hand tightening and release without a tool kit on site.
- Electronic and test equipment: low-profile knurled screws keep the head within the panel envelope.
- Automotive interior panels: thumb screws suit trim and access points that must remain user-serviceable.
- Outdoor machinery access points: stainless steel shanks resist corrosion where covers are exposed to weather.
Where a project also needs conventional threaded fasteners, we supply the wider Bolts and Nuts ranges from the same production and quality system.
Materials, Threads and Critical Specifications
Material selection drives corrosion resistance, head durability and the torque a hand screw can accept. We confirm the shank grade, head material and finish against the working environment before quoting.
- Shank material: carbon steel or stainless steel, matched to the mating part and exposure conditions.
- Head material: plastic or metal heads, depending on grip feel, weight and temperature exposure.
- Thread form: metric or inch series, coarse or fine, to suit the tapped hole or nut in the assembly.
- Dimensional standard: DIN 464, DIN 465, DIN 316, DIN 653 or ASME/ANSI B18.17 as applicable.
- Finish: post-treatment options including hot-dip galvanizing and blackening for complex or mixed-material parts.
Because the head is the functional feature, we treat head diameter, knurl or wing geometry and shank concentricity as inspection points rather than cosmetic details. Thread fit and head-to-shank alignment are checked so the screw seats squarely against the panel surface.
Configuration Options We Build To
Hand screws are rarely a single catalogue item. Most projects combine a standard head form with a project-specific thread length, material and finish. We configure each line from the drawing or sample supplied.
Head Geometry
Wing, square wing, knurled cylindrical or low-profile knurled heads, sized to the available finger clearance.
Thread and Length
Full or partial thread, metric or inch, with shank length set by panel thickness and engagement depth.
Material and Finish
Carbon or stainless steel shanks, plastic or metal heads, with plating or blackening where the environment requires it.
Quality Control and Acceptance
Our quality system follows total quality management through the production process, with inspection after each operation and final inspection of finished parts against customer requirements and international standards. An in-house laboratory supports chemical composition, mechanical property, non-destructive and geometric dimension checks using a spectrometer, CMM, X-ray flaw detector and related equipment.
- Incoming material verification before forming and threading.
- In-process checks on head geometry, thread form and shank dimensions.
- Final inspection of finished hand screws before packing.
- Dimensional and material records aligned to the agreed standard.
Where a project calls for documented acceptance, we agree the inspection items and sampling basis at order confirmation so the delivered lot matches the approved drawing.
Packaging, Delivery and Serviceability
Hand screws are supplied in bulk cartons, retail kits, blister packs or custom boxes depending on the sales channel, with export cartons for sea freight. Our location within a two-hour drive of Shanghai and Ningbo ports supports consolidated export shipments, and DDP delivery can be arranged where the project requires door delivery.
For maintenance planning, we keep the head form and thread specification stable across repeat orders so replacement parts fit existing panels. Spare-part supply follows the same drawing revision as the original shipment, and packaging can be labelled by installation point where a customer maintains multiple access-panel sizes.
Information We Use to Configure Your Solution
Our proposal is based on the working point, material and production target. The following inputs let us confirm the head form, thread, material and inspection plan without back-and-forth.
| Project Input | What It Determines |
|---|---|
| Drawing or physical sample | Head geometry, thread form, shank length and tolerances |
| Mating material and panel thickness | Engagement depth, thread length and clamping range |
| Operating environment | Shank grade, head material and finish selection |
| Standard and inspection requirement | Dimensional standard, acceptance items and documentation |
| Order quantity and packaging channel | Batch planning, carton or retail pack format |
Frequently Asked Questions
Which hand screw types does Better Fastener manufacture?
We produce wing screws to DIN 316:2016, square wing wing screws and Type B standard thumb screws to ASME/ANSI B18.17:1968, and low-profile knurled thumb screws to DIN 653:2006, along with other hand screw configurations built to drawing or sample.
What materials and head options are available?
Shanks are produced in carbon steel and stainless steel, with plastic or metal heads depending on grip, weight and temperature requirements. Finishes include hot-dip galvanizing and blackening where the application demands additional corrosion protection.
Can hand screws be customized to a specific panel or enclosure?
Yes. Customized production is our core business. We develop and manufacture from the drawings or samples you provide, adjusting head form, thread, shank length, material and finish to match the assembly.
How is quality verified before shipment?
Inspection is carried out after each process, and finished hand screws undergo final inspection against customer requirements and international standards. Our laboratory supports chemical composition, mechanical property, non-destructive and geometric dimension testing.
What packaging and delivery options do you offer?
We supply bulk cartons, retail kits, blister packs and custom boxes, with export cartons for sea freight. Our position near Shanghai and Ningbo ports supports consolidated shipments, and DDP delivery can be arranged for door-to-door projects.
