Bolt & Sleeve Anti-Loosening Fasteners
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The bolt and sleeve assembly by Features • Cold formed bolt with roll-formed threads • Captivated sliding sleeve with resilient grommet • Fastener/sleeve meets strength levels up to P.C.10.9 • Custom-engineered to desired compression load and distance requirements • Manufacturing method minimizes damage to grommet Acument® Global Technologies maximizes performance in joints that must accommodate expansion and contraction due to creep and in-service load relaxation. Benefits • Accommodates vertical movement of joint components caused by in-service conditions, including load relaxation and thermal expansion • Can be used with nonparallel joint surfaces • Minimizes damage to the top surface of the joint • Accommodates tolerance variations in components • Engineering changes in sleeve length easily and quickly accommodated • No added costs for tooling changes for varying sleeve lengths • No special tooling required for installation Thermal expansion, creep and material relaxation cause application materials to expand or contract. These dimensional changes can result in the loss of clamp in the joint members. A fastener that can accommodate these changes while maintaining the integrity of the application is needed. Fastener Sizes: M4 – M12; lengths and washer sizes as required by application Head Styles: as required Thread Styles: as required Drive System: TORX PLUS® Drive, external hex; others available upon request Point Options: dog point, header point, Acupoint® feature; others as required Materials: low carbon steel; others available upon request For more information, please contact: 6125 Eighteen Mile Road Sterling Heights, Michigan 48314 The sliding sleeve features a grommet that can expand or contract as needed to accommodate changes in the application material. The sleeve is not crimped into place but instead is held in place by the washer. This maximizes fastener strength. The foot increases contact area to minimize potential embedment at the surface of the tapped hole, while the resilient grommet protects the top surface of the joint. The sliding action of the sleeve allows faster and easier alignment into the tapped hole. The design of the bolt and sleeve assembly by Acument® maximizes fastening performance in these applications while minimizing in-place costs. TORX PLUS and Acupoint are trademarks of Acument Intellectual Properties, LLC