the allen head has an internal ______ recess that the allen wrench fits in. select one: a. octagonal b…
the allen head has an internal ______ recess that the allen wrench fits in. select one: a. octagonal b. hexagonal c. square d. triangular
Answer
Brief Explanations:
Allen - head screws have an internal hexagonal recess which is designed to fit an Allen wrench. This is a well - known standard in mechanical and engineering applications.
Answer:
B. Hexagonal