This is an authentic OEM component from Bostitich. The lock nut is made for use with the F84-138 (Type 0) Foot Operated Bottomer. This item secures the spring in the magazine unit. This component is sold individually. A pair of pliers and a hex key are often needed for the replacement.
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Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
