Skip to content

McMaster 4403K661 Silicone Vibration-Damping Sandwich Mount, 5/16"-18 Zinc-Plated Steel Stud, 175 lb Capacity

UPC: | Harmonization / Schedule B : 3926.90.9988

Country of Origin: United States | Shipping Weight: 1 lbs

Original price $58.64 - Original price $58.64
Original price
$58.64
$58.64 - $58.64
Current price $58.64

Install these mounts between two holes inside or under equipment. Our jack-of-all-trades option, they isolate vibration to protect circuit boards, air compressors, and everything in between. They also muffle noise so you can work or hold a conversation around buzzing and thumping machinery.

High-Temperature Silicone Rubber — These mounts handle temperatures about twice as high as natural rubber and neoprene. They also handle temperatures well below zero for the widest temperature range of any mount we offer.

Material Silicone Rubber
Stud Material Zinc-Plated Steel
Capacity per Mount 175 lb
Deflection @ Capacity 0.12"
Shear Capacity per Mount 45 lb
Deflection @ Shear Capacity 0.12"
Height 1"
Diameter 1 1/2"
Stud Size 5/16"-18
Stud Length 5/8"
Hardness Durometer 60A
Hardness Rating Medium
Temperature Range -80°F to 300°F
Color Orange
Mount Type Threaded Stud
Shape Round
Vibration-Damping Mount Type Sandwich
Performance High Temperature, UV Resistant
Thread Type UNC
System of Measurement Inch
Country of Origin United States
DFARS Compliance Specialty Metals COTS-Exempt
ECCN EAR99
REACH Compliance REACH (EC 1907/2006) (06/25/2025, 250 SVHC) Compliant
RoHS Compliance RoHS 3 (2015/863/EU) Compliant
Schedule B Number 3926.90.9988
USMCA Qualifying No