Large and Small Plastic Wing Screws

Product Overview

The SL-129 wing screw set gives farms two hand-tight fasteners: a black small version weighing 2 g and a white large version weighing 6 g. Both stand 3.1 cm tall, with wing-shaped heads that can be turned by fingers without a screwdriver or wrench. The black head spans 2 cm and the white head spans 3 cm, so one set covers tight spots and larger panels.

Wing screws like these are used wherever poultry house equipment needs frequent hand adjustment, such as cage panels, curtain clamps, winch brackets and equipment covers. The two sizes let farmers keep one fastener type for small fittings and another for larger panels, all tightened by hand without tools.

Key Features and Benefits

• Two sizes in one set - black 2 g small screw and white 6 g large screw for different panel and clamp thicknesses.
• Wing-shaped head - tighten and loosen by hand, no screwdriver or wrench required on site.
• 3.1 cm length on both - the screw shank reaches the same depth on both sizes for interchangeable use.
• Black and white color coding - separate the two sizes quickly on the workbench and in the toolbox.
• Light plastic body - adds no noticeable weight to the panels and clamps it fastens.
• Corrosion-free - plastic will not rust in the humid air of poultry houses.

Technical Specifications

• Product name: SL-129 large and small wing screws
• Black small screw: 2 g, head width 2 cm, length 3.1 cm
• White large screw: 6 g, head width 3 cm, length 3.1 cm
• Head style: wing head, hand-tightened
• Material: engineering plastic, black and white

Materials and Quality

Both screws press from a resin blend tuned to give the threads grip without cracking under finger tightening. The wing heads are formed to sit comfortably between fingers, so staff can tighten them even with slightly wet gloves. Every screw goes through thread-forming and wing-edge inspection before packing.

The black and white colors are molded into the plastic, so the two sizes stay distinguishable after years of use. We keep both sizes produced to the same 3.1 cm shank length, so a farm that stocks both can swap between them as panel needs change.

The black small screw is molded slightly more flexible for thin cage panels, while the white large screw uses a stiffer compound for thicker brackets. The wing profiles are flattened on top so fingers can find them by feel even in a dim service corridor.

How to Use and Maintain

Choose the size that fits the panel or clamp hole, turn the wing head by hand until snug, and stop once the panel is held firmly. Do not over-tighten, since plastic wings strip more easily than metal screws. For adjustments that need more grip, a pair of pliers can gently assist the wing, but hand tightening is the normal mode.

During each flock turnaround, twist each wing screw a quarter-turn to feel whether the thread still grips; swap out any screw that turns freely. Keep both sizes in separate small boxes in the farm toolbox so staff always reach for the correct screw the first time.

Thread the screw by hand until snug, then give the wing a quarter-turn more; stop there, because extra force strips the plastic threads. Keep a small tray on the workbench so dropped wing screws do not fall into the litter.

Applications

These wing screws are used on poultry house cage panels, curtain side clamps, winch brackets and equipment covers that need frequent hand adjustment. The small black screw suits tight spots and thin panels, while the large white screw suits thicker brackets and door covers.

Distributors stock both sizes together because farm service calls usually involve adjusting several panel types in one visit. The screws also suit retrofit projects where metal bolts are being replaced by hand-tight fasteners for faster daily operation.

Breeder farms use the small black screw on egg belt covers, while the large white screw suits curtain wall brackets and feeder trough mounts. The pair is also handy on poultry processing equipment that staff adjust daily without carrying a tool belt.

Why Choose Hebei Yilu Shunfeng Breeding Equipment

Hebei Yilu Shunfeng Breeding Equipment Co., Ltd. specializes in poultry feeding, drinking and breeding equipment for farmers and distributors worldwide. Every product is checked before shipment to ensure consistent quality, and orders are packed with export-grade packaging to protect the goods during transport. Our sales team can provide specification sheets, packing details and shipping advice for any order size. If you need more information about these wing screws, packaging options or mixed container loads, please contact us.

Frequently Asked Questions

Q1: What is the difference between the two screws?

The black small screw is 2 g with a 2 cm head, and the white large screw is 6 g with a 3 cm head; both have the same 3.1 cm shank length.

Q2: Do I need tools to tighten them?

No, the wing heads are designed for hand tightening; pliers can assist only if extra grip is truly needed.

Q3: Can they replace metal bolts on my panels?

Yes, they are commonly used where frequent hand adjustment is needed, but confirm the panel hole size before ordering.

Q4: What if a wing cracks?

Replace the screw, since a cracked wing gives uneven grip and can let a panel slip unexpectedly. Order by the wing size that matches your panel holes; mixing the two in one bag is no problem, just tell us the split you need. Both screws share the same 3.1 cm shank, so a panel drilled for one size still accepts the other. Just tell us how many black and how many white screws you need, and we will split the bag to your count.