Hexagon Socket Head with Concave End Set Screws 5/16*8 Headless Screws DIN916

• Customization: Available
• Material: Carbon Steel/ Stainless Steel/Copper
• Type: Round Head
• Model NO.: M1.6-M16
• Groove: Hexagon
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, GB, ANSI, BSW
• Grade: 4.8/8.8/10.9/12.9/A2-70/A4-80
• Surface: Black Oxide/Zinc Plated/Plain
• Color: Black/Blue/White/Gold/Silver
• Measurement: Metric/Inch
• Pitch: Coarse/Fine
• Thread Way: Right/Left
• Length: 6-50mm/Other Length Customized
• Transport Package: Bag/Box/Pallet
• Specification: M1.6-M16/Other Customized
• Trademark: LingKe
• Origin: China
• Production Capacity: 30000000

Product Description

Product Description

Hexagon socket head with concave end set screws

These specialized fasteners feature a recessed hexagonal drive and concave contact surface, designed for high-torque applications requiring precise component fixation. The cup point design provides:

Enhanced grip‌ through concentrated radial pressure (30% higher than flat point)
Minimal surface damage‌ to shafts compared to cone points
Optimal torque transfer‌ via 1.5× hex key engagement depth

Material Options:‌
• Alloy steel (Grade 12.9) for extreme loads
• Stainless steel (A2-70/A4-80) for corrosion resistance
• Titanium for aerospace weight reduction

Standards:‌ DIN 916, ISO 4029, ANSI/ASME B18.3

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Specification

Product Name	Set Screws
Type	Hexagon Socket Head With Concave End
Material	Carbon Steel /Stainless Steel /Copper/Brass
Grade	4.8/8.8/10.9/12.9/A2-70/A4-80
Surface Treatment	Zinc Plated/Black Oxide/Plain
Color	Blue/White/Black/Silver/Gold
Measurement	Metric/Inch
Size	M1.6-M16/Other Customized/ 1/4"-2"
Length	6mm-50mm/Other Customized/ 1/2"-3"
Service	Support OEM/OBM/ODM Customized Service

Packing & Delivery

Bulk/Fiber Bag/Neutral packing

Carton/Box

Wood Pallet/Box

Bagged packaging is ideal for smaller quantities of fasteners. The fasteners are placed in durable plastic bags, which are then sealed to protect the contents from moisture and dust. Each bag is clearly labeled with product details and quantities. This packaging is easy to handle and transport for smaller orders, making it convenient for workshops and retail settings.

Boxed packaging offers a more structured solution for medium to large quantities of fasteners. The fasteners are packed in sturdy cardboard boxes, which provide additional protection against physical damage during transit. The boxes are designed to stack neatly, optimizing storage space. Each box is labeled with essential information, ensuring easy identification and inventory 

Palletized packaging is used for bulk shipments of fasteners. Multiple boxes or bags are securely strapped onto a pallet, creating a stable and easily transportable unit. This method is highly efficient for large-scale distribution and warehousing. Palletized packaging ensures that large quantities of fasteners can be moved quickly and safely using forklifts, reducing handling time and labor costs.

Company Profile

Certifications

FAQ

Q: What is the estimated lead time for orders?
A: Our estimated lead time is 15-30 days for 1-2 containers and extends to 30-45 days for 3-20 containers, ensuring timely delivery.
Q: Are you a professional manufacturer?
A: Absolutely! We have proudly been at the forefront of manufacturing since 1995.
Q: Is it possible to request a customized size?
A: Indeed! We offer customization services to tailor products precisely to your design specifications.
Q: What export documentation do you provide?
A: Our comprehensive export package includes a Commercial Invoice, Packing List, Bill of Lading, and COC, among other essential documents.
Q: How can I place an order?
A: Simply contact us via email or phone to receive a quote and finalize your order with a Purchase Order (PO).