Metallics WAKJ9 5/16"Light Duty Blue Collarless Vinyl Wall Anchor Jar w/ 12 x 1-1/4 Pan Head Combo Screw

Screws are included. The WAKJ9 jar is packed with 12 x 1-1/4 inch pan head combo screws matched to the 5/16 inch light duty blue vinyl anchors, so each anchor has its fastener. The combo head takes either a Phillips or a slotted driver, which is handy when you are working out of a pouch and don't want to swap bits.

These are light duty anchors, so treat them as fasteners for low-load work: device plates, low voltage brackets, small straps, signage, cable clips. Anything carrying real weight or taking vibration (panel boxes, heavy raceway, strut) wants a toggle or a self-drilling metal anchor instead. Rule of thumb for any plastic expansion anchor is that holding power comes from the wallboard, not the anchor, so load is limited by the board.

Drill to match the anchor body, 5/16 inch, and keep the hole square to the wall so the anchor seats flush without spinning. Oversize the hole and the vinyl sleeve will turn when you drive the 12 x 1-1/4 inch screw instead of expanding against the board.

Collarless means there is no flange or lip at the top of the anchor, so the body drops fully into the hole and nothing stands proud of the wall surface. That matters when you are mounting a plate or bracket tight to the finish, since a collared anchor leaves a ring that holds the part off the wall. The tradeoff is that a collarless anchor can be pushed too deep, so drill only to depth and set it flush.

Vinyl expansion anchors work in any hollow or soft wall material where the anchor can grip the hole wall, which covers drywall, plaster and lath, and soft masonry. What they need is enough depth for the anchor plus the 1-1/4 inch screw, so on thin board the anchor must break through into the cavity and the sleeve grips the board thickness only. In solid concrete or brick a vinyl anchor is the wrong choice; use a masonry anchor rated for the base material.

It's a jar pack, not a loose pair. The WAKJ9 ships as a jar of 5/16 inch blue vinyl anchors with matching 12 x 1-1/4 inch pan head combo screws, which is how electricians and maintenance crews usually buy them for van or shop stock rather than counting out singles per job.