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18
+
YEARS OF EXPERIENCE
3000㎡+
FLOOR SPACE
160
+
MACHINERY EQUIPMENT
3500
+
SATISFIED CUSTOMERS
The tamper-resistant drilled spanner head screw is designed with a two-hole structure on the screw head, which significantly increases the difficulty of removal. With special shapes on the head, making them incompatible with standard tools, and ensuring an effective anti-theft function.
The two recessed holes on the screw head require a specialized two-point wrench to tighten or loosen the screw. This design makes it challenging for unauthorized individuals to access or remove the screw, providing security for valuable or sensitive equipment.
They are perfect for securing traffic signs and other public infrastructure. and ideal for protecting billboards and outdoor advertisements from tampering.
In power installations, the two-point screws allow for easy maintenance and inspection by authorized personnel, without compromising the security of the system.
The tamper-resistant drilled spanner head screw offers a reliable, secure solution for any application requiring high safety and protection against unauthorized tampering. Whether for automotive, industrial, or public infrastructure applications, these screws provide both security and ease of maintenance.
Specification
| Standard | ISO,JIS,GB,ANSI,BSW,DIN or non standard as customize |
| Material | 1.Stainless Steel:SS201,SS303,SS304,SS316,SS410,SS420 2.Steel:C45(K1045),C46(K1046),C20 3.Brass:C36000(C26800),C37700(HPb59),C38500(HPb58),c27200Cuzn37),C2800(CuZn40) 4.Bronze:C3604,C52100,H62,H65,etc 5.Iron:1213,12L14,1215 6.Aluminum Alloy:Al6061,Al6063,A7075,etc 7.Carbon steel:C1006,C1010,C1018,C1022,C1035K,C1045,C435#,40CrMo,42CrMo 8.Alloy steel:SCM435,10B21 9.According to customer demand |
| Grade | 4.8,6.8,8.8,10.9,12.9,etc |
| Size | M2-M24 or made to print as customer's specification |
| Specifications | Various shape size according to client's requirement |
| Thread | UNC,UNF,Metric thread |
| Finish | Plain,Zinc Plated(Clear/Blue/Yellow/Black),Ni-plated,black oxide,Sandblast and Anodized,H.D.G,DAC,GOEMET,as custom need |
| Package | Plastic bag + outer carton + pallets |
Product Picture
Production Process
Quality Control
Surface Treatment
Offer a variety of surface treatments for our screws to meet different needs and environmental conditions. Such as zinc plating, nickel plating, hot-dip galvanizing, anodizing, zinc nickel alloy, dacromet coating, phosphating, etc.
Custom Service
With 18 years of experience in the fasteners area, Zeyao Hardware specializes in manufacturing custom fasteners, including screws, bolts, nuts, rivets, standoffs, spacers, wrenches, pins, and more. Welcome to send your inquiries to get a free quote.
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