Description
Monster Overview:
Achieve a flush finish in thin plastic with
bulk #4-20 × ¼″ Phillips Flat-Undercut Head PT 48-2 Thread-Forming Screws
from Monster Bolts.
The shortened 82° undercut head seats where standard flats bottom-out,
while the tri-lobular Plastite® flank cold-flows thermoplastic,
forming chip-free internal threads—no taps, no debris.
Precision-machined from corrosion-proof 18-8 (304) stainless steel,
each screw is passivated to ASTM A967 and factory
wax-lubed for smooth, low-torque seating. Master cartons keep
per-unit cost razor-low.
Monster Features:
- Undercut Flat Head 82°: Full #4 diameter seats flush in shallow bosses & sheet-plastic lids.
- Thread-Forming Geometry: PT 48-2 profile maximises pull-out strength in ABS, nylon, polycarbonate & more.
- Drive: Phillips #1 cross recess—reliable with manual, pneumatic or automated drivers.
- Material & Finish: 18-8 stainless, passivated for marine-grade corrosion resistance, dry wax for repeatable clamp load.
- Bulk Packaging: Supplied in sealed master cartons—ideal for electronics, medical & outdoor assemblies.
Monster Specifications:
- Diameter: #4 (0.112 in.)
- Thread: PT 48-2 tri-lobular (functional ≈ 20 TPI)
- Length: ¼″ (0.250 in.) – fully threaded
- Head Style: Flat Undercut 82°
- Drive Style: Phillips #1
- Material: 18-8 Stainless Steel (non-magnetic, annealed)
- Finish: Passivated + 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.
Order Yours Today and Experience the Monster Bolts Difference!
Buy with confidence—every bulk carton ships fast from our U.S. warehouse and is backed by Monster Bolts’ quality guarantee and responsive support.