Chicago Screws Black Galvanized

冷間圧造加工は、切削の少ない、あるいは切削を必要としない新しい圧造加工のひとつである。
金属。の作用による金属の塑性変形を利用した加工法である。
外力を受け、金型の助けを借りて、金属の体積を再分配し、移動させる。
必要な部品やブランクを製造します。冷間圧造工程は、標準的な
ボルト、ネジ、ナット、リベット、ピンなどの留め具。

Chicago Screws Black Galvanized are heavy-duty, corrosion-resistant fasteners designed for structural and outdoor applications where strength and durability are critical. They combine the rust-resistant properties of galvanization with a black oxide or phosphate finish for enhanced protection and a sleek appearance.

Key Characteristics:

2. Head Design

• Chicago Head (Hex Washer Head):

  • Low-profile hexagonal head with an integrated washer face.

  • Distributes clamping force evenly, reducing material damage.

  • Prevents cam-out (slipping) when used with power tools.

Advantages Over Standard Screws

✅ Dual Protection: Galvanized + black oxide resists rust longer than plain zinc screws.
✅ Stronger Grip: Chicago head prevents stripping under high torque.

Final Verdict:

Chicago Black Galvanized Screws are the go-to choice for contractors and DIYers needing a durable, weather-resistant fastener with a professional look. Whether for metal framing, outdoor builds, or heavy-load applications, they outperform standard screws in both strength and longevity.

1. Head Style:

   • Chicago (or “hex washer”) head – a low-profile hexagonal head with a built-in washer face for better load distribution and grip.

   • Designed to prevent stripping when driving with a power drill or impact driver.

アプリケーション

• Metal stud framing (drywall, HVAC, roofing).

• Attaching wood to metal (e.g., decking, fencing).

• Automotive and machinery assembly.

• General construction where corrosion resistance is needed.

These screws are ideal for projects requiring both aesthetic appeal (black finish) and long-term weather resistance.