L-Hook Screw

L-Hook Screws are a type of hardware fastener characterized by a 90° bent hook at one end and a threaded shank at the other. The "L" shape allows them to serve dual functions:

Fastening (via the threaded portion, which screws into wood, walls, or mounting points).

Hanging (via the open hook, which supports cables, ropes, chains, or other objects).

Unlike standard L-bolts (which anchor into concrete), L-hook screws are designed for lighter-duty applications where a threaded attachment is needed.

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Common Applications:

Hanging Systems: Picture frames, mirrors, lighting fixtures, retail displays.

HVAC & Electrical: Securing cables, conduits, or pipes to walls/ceilings.

Furniture & Cabinetry: Hanging shelves, hooks, or sliding doors.

Industrial: Lightweight rigging, tool organization, machinery guards.

Outdoor Use: Hanging planters, signs (if corrosion-resistant).

Standards & Specifications

A. General Standards

ISO 1478 / ISO 1479 (Thread-forming screws for metals).
ANSI/ASME B18.6.1 (Slotted Head Machine Screws, applicable to some L-hook screws).
DIN 7977 (German standard for self-tapping screws, similar to L-hook screws).

B. Thread Standards

Metric (ISO): M4, M5, M6 (common sizes).
Unified (UNC/UNF): #8-32, #10-24, 1/4"-20 (common in North America).
Self-Tapping Threads: Used for direct insertion into plastic or thin metal.

Materials

Material	Properties	Common Uses
Carbon Steel	Low cost, moderate strength	Indoor furniture, general-purpose hanging
Stainless Steel (304/316)	Corrosion-resistant	Marine, outdoor, humid environments
Brass	Decorative, non-magnetic	Architectural fixtures, electronics
Zinc-Plated/Galvanized Steel	Rust-resistant (indoor/mild outdoor)	HVAC, electrical, retail displays

Product Parameters

Product Name	L-Hook Screw
Material	carbon steel,stainless steel,Brass,Hot-Dip Galvanized Steel
Size	Diameter: M3～M12 (metric). #6～1/2” (imperial)
Surface	Plain,Zinc Plating,Hot-Dip Galvanizing,passivation
Production Process	Forging
MOQ	800KG
Package	Carton & Pallet