Bolts
Large Flat Head Socket Bolts
Ultra-Low Profile Hex Socket Head Bolts
Our Large Flat Head Socket Bolts feature an oversized, ultra-low profile head with an internal hexagon (Allen key) socket drive. The enlarged flat head provides a significantly wider clamping area compared to standard socket head cap screws, distributing load more evenly while maintaining a flush, low-profile appearance. Manufactured through precision cold heading, these bolts are ideal for applications where space is limited but high clamping force is essential.
Key Features
Oversized flat head for increased bearing surface
Ultra-low profile design for flush mounting
Internal hex socket for high torque application
High-grade steel up to 12.9 for superior strength
Color zinc plating for excellent corrosion resistance
Custom lengths and sizes available on request
Technical Specifications
| Product Name | Large Flat Head Socket Bolts |
| Chinese Name | 大平头内六角螺栓 |
| Brand | ZCM / Zhongchun |
| Grade | 8.8 / 10.9 / 12.9 |
| Material | Carbon Steel, Alloy Steel (SCM435, 40Cr), Stainless Steel (304/316) |
| Size Range | M4 - M16 |
| Thread | Full Thread / Partial Thread |
| Head Type | Ultra-low Profile Flat Head with Internal Hex Socket |
| Drive Type | Hex Socket (Allen Key) |
| Surface Treatment | Color Zinc, Yellow Zinc, White Zinc, Black Oxide, Dacromet, Plain |
| Standards | ISO 7380, DIN 7991, GB/T 70.2, Custom |
| Packaging | Carton + Pallet, or per customer request |
| MOQ | Contact us for details |
| Lead Time | 15 days for standard orders |
Applications
Large Flat Head Socket Bolts are widely used in industries requiring flush-mount, high-clamping-force connections with minimal head height.
Furniture assembly and knock-down fittings
Precision machinery and equipment mounting
Electronics enclosure and chassis fastening
Automotive interior and trim assembly
Thin panel and sheet metal connections
Appliance manufacturing and assembly
Cabinet and woodwork flush-mount fastening
Elevator and escalator component assembly
Interested in Large Flat Head Socket Bolts?
Send us your specifications for a competitive quote. Standard orders delivered in 15 days.