A clasp apparatus for a length of strand material includes a notched metal plate supported in a housing. The notched portion in the plate has opposed slicing edges spaced apart a distance less than the diameter of the strand material to be forcibly inserted into the notched portion. The plate is outwardly bulged in the area of the notched portion for stiffening the plate and preventing buckling thereof during forcible insertion of said strand material into said notched portion. The plate further includes a pair of integral stiffener flanges on either side of the notched portion which further prevent buckling of the plate during insertion of the strand material into the slotted portion. The recessed portion of the housing receives the plate therein. A sidewall defining the recessed portion of the housing supportably engages against the stiffener flanges and a portion of the plate adjacent to the outwardly bulged portion thereof, further preventing buckling of the plate. The plate is thus constrained to deflect stiffly resiliently without buckling upon insertion of the strand material in the notched portion of the plate.
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