H.W. Eckhardt Corporation

PSM Sheet Metal Fasteners
The captive fasteners shown in this catalogue feature attachment by mechanical means avoiding the damage and uncertainty often associated with weld nuts and studs allowing their use in pre-finished materials. They can be described as either 'riveting' or 'clinching' types, according to their method of installation. The simplicity of installation afforded by the mechanical method of attachment make these fasteners equally suitable for installation by methods ranging from a simple press to fully automated equipment.
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*Riveting Types:*
ANCHOR RIVET BUSH (ARB) The Anchor Rivet bush - ARB - is a threaded fastener incorporating a serrated shank which, when riveted over, cuts into the surface of the sheet, giving high torque resistance and firmly retaining the bush in position. Click here to view pdf
MINIATURE ANCHOR RIVET BUSH (MINARB) Minarb is a miniaturised Anchor Rivet Bush designed for use where space is at a premium Click here to view pdf
SELF LOCKING MINARB (MINLOK) Minarb with thread locking capability to BS4929, Minlok is a miniaturised captive thread fastener for sheet metal with an in-built all-metal self-locking feature. Click here to view pdf
*Clinching Types:*
SELF CLINCHING BUSH/NUTS A threaded fastener, the Self-Clinching Bush incorporates a groove and a knurled platform which - when embedded in the sheet - causes the displaced material to flow evenly into the groove of the fastener for a positive lock. Click here to view pdf
HPFH SELF-CLINCHING STUD HPFH Self Clinching Studs have been designed to bring higher levels of performance to the PFH range of fasteners for applications that do not demand a flush finish condition. Click here to view pdf
SELF-CLINCHING STUD A threaded fastener, the P-FH Self-Clinching Stud incorporates a knurled platform under the head which - when embedded in the sheet - displaces into the clinch ring, securing the fastener. Click here to view pdf
PF FLUSH SELF-CLINCHING BUSHES/NUTS PF Flush Self-Clinching Bushes have been designed to provide a thread within the sheet thickness - a simple squeezing action embeds the hexagonal head into sheet - for a flush finish to both sides. Click here to view pdf
SELF-CLINCHING STAND OFFS Self-Clinching Stand-Offs are designed to serve as a spacers or distance pieces. A simple squeezing action embeds the hexagonal head into the sheet causing the displaced metal to flow into the clinching groove. Click here to view pdf
Technical details may change. Please contact HWE for latest drawings and specifications. Alternatively you can fill out our Online Quotation Form . Order conditions and minimum quantities may apply for some products.