Generic #8 SEMS Phillips Trim Screws 50-Piece Kit — Black Phosphate, 5 Lengths for GM Interiors

If you need an exact-match set of interior screws for a restoration or repair, this kit supplies the same style used on assembly lines — not generic substitutes. The bundle contains fifty screws in five common lengths with pre-attached countersunk washers and a black phosphate finish, designed to fit interior panels, moldings, bezels and many trim points on GM, Chevrolet, Buick, Oldsmobile, Pontiac, Cadillac and GMC trucks.

What lengths and quantities come in the set?

The pack includes five lengths so you have the correct fastener for different thicknesses and mounting points. Each length is supplied in a quantity of ten for easy coverage of multiple trim pieces.

• 1 1/4" — 10 screws
• 1" — 10 screws
• 11/16" — 10 screws
• 5/8" — 10 screws
• 1/2" — 10 screws

How are these screws constructed and what head type do they use?

Each fastener is a #8 screw with a #6 Phillips countersunk head and a permanently attached loose washer (SEMS style). The washer helps distribute clamping force and protects trim surfaces while speeding installation.

• #8 thread pitch for standard interior panel retention
• #6 Phillips countersunk head for flush seating
• Integrated loose washer (SEMS) for consistent alignment and finish protection
• Black phosphate finish to match interiors and resist light corrosion

Where in the vehicle are these screws typically used?

These are the same fasteners found throughout interiors on many GM-platform vehicles and are suitable wherever factory trim requires a countersunk Phillips screw with a washer. They work well on both structural and cosmetic trim applications.

• A-pillar, B-pillar and sail panel trim
• Door panels, headliner molding, and sun visor mounts
• Dash bezel trim, console components, and dome light surrounds
• Trunk panel trim, sill plates, headliner hooks, and T-top trim

Will these screws fit my GM or GMC truck restoration?

These screws are intended to match the OEM-style hardware used on many General Motors vehicles; they’re often the exact fasteners used on the assembly line rather than aftermarket generic screws. Check your vehicle’s trim thickness and head drive to choose the correct length from the included sizes.

• Compatible with GM, Chevrolet, Buick, Oldsmobile, Pontiac, Cadillac, and GMC models
• Handy for restorations, repairs, and replacing missing interior fasteners
• Best matched when replacing countersunk Phillips-style trim screws
• Sold as a set of 50 to cover multiple panels and assemblies

Who is this for: This kit is ideal for enthusiasts restoring vintage or modern GM interiors, professional trim installers, and DIY mechanics who want exact-match replacement hardware. If you routinely work on door panels, headliners, dash bezels, consoles or other interior trim pieces and prefer factory-style fit and finish, this 50-piece set gives you a range of lengths and a consistent black-phosphate appearance so you can finish jobs cleanly and quickly.