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Thread Protectors/Foundation Bolt Covers

Thread Protectors / Foundation Bolt CoversPremier Vinyl Solutions manufacture thread protectors that come in all thread sizes from M3 to M68 with a minimum length of 5mm. Thread protection caps are also sometimes referred to as foundation bolt covers. We can produce these up to 400mm in size.

The minimum quantity of orders of our thread protectors is from only 50-100 pieces, and we offer great discounts on large or bulk orders.

Please refer to our table of thread protector sizes below for standard sized plastic thread protectors we manufacture. The table includes both imperial and metric size information.

Call us today for a free, no-obligation quote on 01952 585522.

Standard Thread Protector Sizes - Metric

Thread Size Inside Length 2 Inside Length 2 Inside Length 3 Minimum Quantity
M3 10MM 15MM 25MM 1000 Pieces
M4 10MM 15MM 25MM 1000 Pieces
M5 10MM 15MM 25MM 1000 Pieces
M6 10MM 15MM 25MM 1000 Pieces
M8 10MM 15MM 25MM 1000 Pieces
M10 10MM 15MM 25MM 1000 Pieces
M12 10MM 15MM 25MM 1000 Pieces
M14 10MM 15MM 25MM 1000 Pieces
M16 10MM 15MM 25MM 1000 Pieces
M20 10MM 15MM 25MM 500 Pieces
M22 10MM 15MM 25MM 500 Pieces
M24 10MM 15MM 25MM 500 Pieces
M27 8MM 16MM 30MM 500 Pieces
M30 8MM 16MM 30MM 500 Pieces
M36 8MM 16MM 30MM 500 Pieces
M44 8MM 16MM 30MM 500 Pieces
M48 8MM 20MM 30MM 500 Pieces
M64 8MM 20MM 30MM 500 Pieces
M68 8MM 20MM 30MM 500 Pieces

Standard Thread Protector Sizes - Imperial

Thread Size Inside Length 1 Inside Length 2 Inside Length 3 Inside Length 4
1/8" 5MM 8MM 10MM 20MM
3/16" 5MM 8MM 10MM 20MM
1/4" 5MM 8MM 10MM 20MM
5/16" 5MM 12MM 16MM 30MM
3/8" 5MM 12MM 16MM 30MM
1/2" 5MM 12MM 16MM 40MM
9/16" 6MM 12MM 16MM 50MM
11/16" 6MM 12MM 25MM 50MM
3/4" 6MM 12MM 25MM 50MM
1" 6MM 16MM 30MM 70MM
1 1/4" 6MM 16MM 30MM 70MM
1 1/2" 6MM 16MM 30MM 70MM

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