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• Types U61, U63, and U64 have low-profile caps and are intended primarily for use with countersunk head screws, but can also be used with pan head screws. The appropriate size for a particular screw depends on the screw size and head type.
• Polypropylene Dome Cap and Cup Washer
• A polypropylene screw cap kit with a pair of dome-shaped caps and cup washers, available in three brushed colors. The cup washer is secured with screws, bolts, or rivets, and the dome cap is clipped onto the washer.
• Ideal for insulating thread heads, improving the appearance of panels and equipment cases, lightweight legs, etc. Each kit contains 25 sets of caps and washers, 4 sizes available for M2 to M5 (No
• 3 to No. 12) thread sizes Minimum size is ideal for covering RS Speedriv 3 mm rivets
• Each kit contains 25 sets of each type (caps/washers).