Rockwood SP1058 Heavy Duty Single Cone Head Screw | 5/16-18
The Rockwood SP1058 is a high-strength architectural fastener designed specifically for Type 6HD concealed surface mounting. This Single Cone Head machine screw is the essential hardware for securing heavy-duty offset pull handles to commercial doors without visible fasteners on the opposite side. Featuring a robust 5/16-18 thread pattern, it is engineered to provide the superior shear strength required for high-traffic entrances.
Heavy-Duty Engineering & Concealed Design
- Type 6HD Mounting Specialist: Specifically crafted for "blind" heavy-duty installations. It allows the pull handle to be mounted firmly to the door face while keeping the mounting hardware completely hidden for a sleek, modern aesthetic.
- Optimized for Offset Pulls: Engineered to fit the mounting posts of Rockwood offset handles, ensuring perfect alignment and preventing the "wobble" often found with standard-duty fasteners.
- High-Torque Hex Drive: Unlike standard screws, the SP1058 features a 3/16" hex drive, allowing for positive tightening and significantly higher torque than a traditional Phillips head.
- Industrial Strength: The 5/16-18 thread and large overall size provide the structural integrity needed for oversized or heavy-use commercial door pulls.
- Precision Sizing: With a 1/2" thread length and 1-1/16" overall length, this screw is precision-sized for standard 1-3/4" thick hollow metal or wood doors.
Technical Specifications
- Model: Rockwood SP1058
- Mounting Type: Type 6HD (Heavy Duty Concealed)
- Thread Pattern: 5/16-18
- Thread Length: 1/2"
- Overall Length: 1-1/16"
- Installation Tool: 3/16" Allen Wrench
- Application: For use with Offset Pull Handles.
| Brand | Rockwood |
| Thread Pattern | 5/16-18 |
| Screw Type | Single Conehead |
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