Scorpion Fasteners' #6 x 1-5/8 in. #1 Square-Drive Trim-Head Fine-Thread Streaker-Point Phosphate Screws (5,000 Pack) (code: SPTR158) feature a streaker-point tip engineered for fast starts and clean, split-resistant penetration, especially in hardwood or MDF trim. The phosphate coating adds light corrosion resistance and is compatible with painted or primed surfaces, making these screws ideal for interior finish work. This bulk 5,000-pack format is well-suited for professional trim carpenters, cabinet installers, and contractors needing efficient, high-volume fastening solutions without compromising finish quality.