🔩 What Is a Socket Screw & What Is an Allen Head Screw?
Precision Fasteners for Industrial & Commercial Buyers

Socket screws and allen head screws are the backbone of modern assembly.
Reduce downtime, improve torque control, and cut procurement costs by up to 37%.

✓ ISO 9001 · CE · RoHS · Factory-direct pricing · 30+ countries served

🔍 What Is a Socket Screw? What Is an Allen Head Screw?

A socket screw is a fastener with a cylindrical head and an internal hexagonal drive (socket). It is designed to be driven by an allen key (hex key). The term “socket screw” often refers to socket head cap screws, but also includes button head, flat head, and set screws with hex sockets.

An allen head screw is simply another name for the same fastener — a screw with a hexagonal recess in the head. The name comes from the Allen Manufacturing Company, which popularized the hex socket drive. Today, “allen head” and “socket head” are used interchangeably across industries.

At Handan Boen Fastener, we manufacture socket head cap screws from grade 8.8 to 12.9, stainless steel 304/316, and alloy steel. Our factory-direct model delivers 30% cost savings compared to distributor prices.

⚡ Socket screw sizes: M1.6 – M48 · Inch 4# – 1"

🔧 Allen head drive: Hex 0.7mm – 19mm · Torx · Phillips available

Powerful Factory, Direct Control

10+ years of export expertise. 30+ countries. 100% in-house production from raw material to final packaging. No middlemen.

Quality Assurance That Protects You

ISO 9001, CE, RoHS, FCC. Every batch tested for hardness, torque, and dimensional accuracy. CPK ≥ 1.33 on critical dimensions.

OEM/ODM Design & Customization

Need a special head mark, unique drive, or non-standard length? Lead time: 7–15 days for prototypes. Full engineering support.

High-Speed Delivery & Logistics

Stock items ship within 48h. Bulk orders: 20–25 days FOB Tianjin/Shanghai. Consolidated shipping reduces your freight cost by up to 18%.

One-Stop Service – From Quote to Tracking

Material selection, torque calculations, packaging, and real-time tracking. ERP integration available for volume buyers.

Global Compliance & Market Access

Certificates for USA, Europe, Middle East, Southeast Asia. Full documentation package: MTR, COC, Fumigation, and more.

Boen’s socket screws reduced our fastener rejection rate from 4.7% to 0.8%. Their factory-direct pricing saved us $62,000 annually on our main assembly line.”

— Thomas Mueller, Procurement Manager, Automotive Components GmbH, Germany

Ahmed Al-Rashid
Construction Buyer, UAE

“We use Boen’s allen head screws for steel structures. Consistent quality, perfect threads, and the zinc coating holds up in coastal humidity. 5/5.”

Sarah Lin
Supply Chain Manager, Taiwan

“OEM socket screws with our logo. 12.9 grade, perfect for high-torque applications. Lead time was 18 days – faster than our local supplier.”

James O’Connell
Operations Director, USA

“We switched from a major US distributor to Boen. Cost per unit dropped 34%, and shipping was seamless. Highly recommend their allen head screws.”

Elena Petrova
Technical Director, Russia

“Boen’s technical team helped us select the right socket screw for cryogenic conditions. Zero failures after 6 months in -40°C.”

David has 18+ years in fastener manufacturing and mechanical design. He leads quality systems at Handan Boen Fastener and has consulted for automotive, construction, and energy clients across 12 countries. 🔧 Expert in socket screw technology & global compliance.