C. T. Onions, A Shakespeare Glossary

1. arrow, esp. one of the stouter and shorter kind with blunt or thickened head MND. II. i. 165 “the bolt of Cupid,” Cym. IV. ii. 300; “A fool's bolt is soon shot” (proverb common from the 13th to 18th c.) H5 III. vii. 137; “I'll make a shaft or a bolt on't,” I'll risk making something or other out of it, I'll make the venture Wiv. III. iv. 24.

2. fetter Meas. V. i. 345 “Lay bolts enough on him,” Cym. V. iv. 10 “to pick that bolt,” 204