Description
Monster Overview:
Achieve a clean, flush finish in thin plastic panels with bulk #4-20 Phillips Flat-Undercut Head PT 48-2 Thread-Forming Screws from Monster Bolts. The shortened undercut head seats flush where standard flats would bottom-out, while the tri-lobular Plastite® geometry cold-flows thermoplastic, forming strong, chip-free internal threads—no taps, no debris. Each screw is heat-treated carbon steel, bright-zinc electro-plated then baked to remove hydrogen embrittlement, and factory wax-coated for consistently low drive torque. Master cartons keep your per-unit cost razor-low for volume production.
Monster Features:
- Undercut Flat Head 82°: Allows a full #4 head diameter to seat flush in very thin bosses or sheet-plastic lids.
- Thread-Forming Geometry: PT 48-2 flank maximises pull-out strength in ABS, nylon, polycarbonate & more.
- Drive: Phillips #1 cross recess—compatible with manual, pneumatic, or automated drivers.
- Material & Finish: Heat-treated carbon steel, bright zinc plated, baked, then dry-waxed for smooth, repeatable seating.
- Bulk Packaging: Supplied in sealed master cartons—ideal for high-volume consumer-electronics and appliance lines.
Monster Specifications:
- Diameter: #4 (0.112 in.)
- Thread: PT 48-2 tri-lobular (functional ≈ 20 TPI)
- Lengths: Fully threaded — popular thin-panel lengths available (select above)
- Head Style: Flat Undercut 82°
- Drive Style: Phillips #1
- Material: Carbon Steel
- Finish: Bright Zinc – baked + factory wax
- Cross-Reference: Plastite® 48-2 / EJOT PT (non-OEM)
More Monster Bolts:
• Need bulk Taptite-style thread-rolling screws?
• Looking for Type 1, 23, 25 & F thread-cutting screws?
Explore our full inch-series lineup.
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