Related Clues:

• Are they comparatively hard — to paint?
• Plates of mollusc beginning to drop right down
• Brad's collars
• Filed regularly, they may provide security for the board
• Initially not an interesting literary subject at our fingertips
• Fixing pins
• They can take a pounding
• Gets precisely
• Fixes trouble between points
• Nothing's got a definition of pins
• They're hard catches
• At your fingertips in the hardware shop
• Catches then drops the flapping sail
• One catches and one hangs on to them
• They're proverbially hard things to drive home