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Undercut Bolt Sets

The UB200 and UB300 sets feature hardened, grade-8 bolts with maximum clearance and through-hardened, plated washers. Replacements for bolts found in these kits are available without any minimum quantity requirements, and our machine shop can produce additional bolt and washer sizes to suit your specifications. For details and purchasing, please contact us.

 

UB200 Set
Diameters:
5/16 to ½ in. (7.9 to 12.7 mm)

Lengths:
1¼ to 2 in. (32 to 50.8 mm)

Weight:
12 lbs (5.5 kg)
UB200 Set
Part Number Size Quantity
Undercut Bolts
U5125 5/16 in. Diameter x 1¼ in. 12
U5150 5/16 in. Diameter x 1½ in. 12
U6125 3/8 in. Diameter x 1¼ in. 12
U6150 3/8 in. Diameter x 1½ in. 12
U8150 ½ in. Diameter x 1½ in. 12
U8175 ½ in. Diameter x 1¾ in. 12
U8200 ½ in. Diameter x 2 in. 12
Hardened Washers
UW5 5/16 in. Diameter 24
UW6  3/8 in. Diameter 24
UW8 ½ in. Diameter 36
UB300 Set 
Diameters:
9/16 to ¾ in. (14 to 19 mm)

Lengths:
1½ to 2½ in. (38 to 63.5 mm)

Weight:
33 lbs (15 kg)
UB300 Set
Part Number Size Quantity
Undercut Bolts
U9150 9/16 in. Diameter x 1½ in. 12
U9200 9/16 in. Diameter x 2 in. 12
U9250 9/16 in. Diameter x 2½ in. 12
U1020 5/8 in. Diameter x 2 in. 12
U1022 5/8 in. Diameter x 2¼ in. 12
U1025 5/8 in. Diameter x 2½ in. 12
U1220 ¾ in. Diameter x 2 in. 12
U1222 ¾ in. Diameter x 2¼ in. 12
U1225 ¾ in. Diameter x 2½ in. 12
Hardened Washers
UW9 9/16 in. Diameter 36
UW10  5/8 in. Diameter 36
UW12 ¾ in. Diameter 36