McGuire Glossary of Fastener Terminology

X - 4 terms

X-DESIGNATION - Designation used in structural bolting which indicates that the threads of the structural bolt must be excluded from the shear plane of the joint.

X-RAY FLUORESCENCE - Is a non-destructive test to determine the thickness of various layers of metal on a part. Common elements measured are: copper, nickel, gold, silver, palladium, and rhodium.

XYLAN 1000 SERIES - Xylan is a fluoropolymer topcoat manufactured by Whitford Corporation, which in the 1014 and 1070 coatings afford high lubricity (co-efficient of friction as low as .02), and corrosion resistance of approximately 1000 hours (ASTM B-117) when applied over phosphate, and up to 2000 hours when applied over electroplating. These are solvent based thin film topcoats. The Xylan products have a maximum operating temperature ranging up to 500 degrees F. Xylan 1000 and 1400 series may also be applied over other basecoats, for added corrosion protection.

XYLAN 1400 SERIES - The 1400 series coatings by Whitford (typically 1424), are low voc coatings. They have a coefficient of friction of .05 to .10, and a maximum constant operating temperature of 400 degrees F. The corrosion resistance of the 1400 series is approximately 1500 hours, when applied over a suitable basecoat such as zinc electoplating.