The original screws are black-oxide. These are 18-8 Stainless Steel and will fit Wilkinson WVS 50K, WVS 50 IIK tremolos. Washers are not included.
Screws are made in Taiwan
Tensile Strength 70,000 psi

Handling:
Economy - USPS Ground - 3-5 business handling days
Standard - USPS Ground - Shipping on the same or next business day
USPS Priority Mail Flat Rate Envelope - Shipping on the same or next business day