21 possible answers to
Answers with 3 characters: PEG PIN Answers with 4 characters: HASP LOOP NAIL SNAP STAY STUD TNUT Answers with 5 characters: CLASP HINGE LATCH RIVET SCREW STRAP UBOLT Answers with 6 characters: BUTTON STAPLE ZIPPER Answers with 8 characters: HOOKANDI Answers with 10 characters: HOOKANDEYE