Certified by EHEDG (European Hygienic Engineering and Design Group) to meet sanitary design standards, these cap nuts fit into tight spaces to cover and seal exposed threads in your food processing facility. Also known as acorn nuts, they’re at least 20% shorter than standard cap nuts. Made from 316 stainless steel, these nuts won’t corrode from frequent washdowns with water or harsh cleaners. They are self-draining, meaning that they don’t have horizontal surfaces, so liquids and debris will drain off completely. They also have extremely smooth sides and rounded edges to eliminate crevices where bacteria could grow.

The silicone seal at the base of the nut keeps contaminants off the threads and prevents an unsanitary metal-to-metal connection. It’s made with metal and chemical additives, so you can find it with a metal detector or X-ray machine if it falls into your line. This helps you comply with Hazard Analysis and Critical Control Point (HACCP) programs to keep contaminated food from leaving your facility. The seal is also FDA compliant, so it’s safe for direct contact with food.

3D CAD models availableFor technical drawings and 3-D models, click on a part number.

Thread

Size Pitch Dp. Wd. Ht. Performance Properties Specifications Met Each

316 Stainless Steel—Silicone Rubber Seal

Inch

1/4"-20 __ 1/4" 7/16" 21/64" Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A160 $7.75

5/16"-18 __ 9/32" 1/2" 25/64" Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A170 7.89

3/8"-16 __ 5/16" 9/16" 15/32" Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A180 9.33

7/16"-14 __ 21/64" 11/16" 33/64" Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A190 13.04

1/2"-13 __ 11/32" 3/4" 35/64" Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A200 11.46

5/8"-11 __ 7/16" 15/16" 43/64" Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A210 13.86

Metric

M6 1 mm 5.5mm 10mm 8mm Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A110 13.55

M8 1.25 mm 6.5mm 13mm 10mm Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A120 14.29

M10 1.5 mm 8mm 16mm 12mm Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A130 14.34

M12 1.75 mm 9mm 18mm 14mm Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A140 16.26

M16 2 mm 10.5mm 24mm 17mm Metal Detectable, X-Ray Detectable EHEDG Certified, FDA Compliant 21 CFR 177.2600 97511A150 20.61