hvac combo drive screws - Screw-Products

HVAC Sheet Metal Screws - Combo Drive

The new HVAC screw features an extremely fast self-piercing tip that significantly reduces work time by quickly penetrating metal sheets.

It comes with a combo drive head, which includes both a 1/4″ hex drive and an integrated T-20 star drive, offering ultimate flexibility by allowing users to choose their preferred driver.

The head is designed to be taller than standard HVAC screws, providing maximum grip with the hex driver, increased control and better torque transfer.

Additionally, the screw head features an undercut to ensure a flush finish with the metal sheet, and making a firm, secure assembly.

General Info	Detail
Type of Screw	Sheet Metal Screw
Head Style	Combo Star Drive / Hex Head
Drive Bit	Combo TX20 Star / 1/4″ HEX
Point Type	Self-Piercing
Technical Evaluation Reports	N/A

Construction	#8
Head diameter (inch)	.335
Minor thread diameter	.118
Major thread diameter	.165
Shaft diameter	.122
Drive Size	Combo TX20 Star / 1/4″ HEX

Steel & Coatings:

Zinc Plated For General Dry Interior Use

The corrosion-resistant zinc coating helps protect against rust in dry indoor environments. Designed for general interior applications and not recommended for exterior or high-moisture applications.

Additional Info & Downloads

Common Applications

Specs & Literature

Image Downloads

Packaging & Counts

Common Applications

Specs & Literature

Image Downloads

Packaging & Counts

General Interior
Size	Drive	1lb	5lb	20lb	Bulk
8 x 1″	TX20	253	1,267	5,067	10,000
8 x 1-1/4″	TX20	214	1,070	4,279	9,000
8 x 1-1/2″	TX20	181	907	3,629	6,500
8 x 1-3/4″	TX20	159	793		4,000
8 x 2″	TX20	146	729		3,500
8 x 2-1/2″	TX20	118	591		2,500
9 x 2″	TX20	112	560		3,000
9 x 2-1/2″	TX20	92	458		2,500
9 x 2-3/4″	TX20	83	417		2,000
9 x 3″	TX20	78	390		2,000
10 x 1-1/2″	TX20	111	553		3,000
10 x 2″	TX20	85	425		2,500
10 x 2-1/2″	TX20	70	348		2,000
10 x 3″	TX20	59	295		1,500
10 x 3-1/2″	TX20	51	255		1,000
10 x 4″	TX20	46	228		1,000
10 x 5″	TX20	37	183		750
10 x 6″	TX20	31	154		600

General Exterior
Size	Drive	1lb	5lb	20lb	Bulk
8 x 3/4″	TX20	326	1,632	6,527	10,000
8 x 1″	TX20	256	1,281	5,124	10,000
8 x 1-1/4″	TX20	219	1,095	4,382	9,000
8 x 1-1/2″	TX20	183	915	3,658	6,500
8 x 1-3/4″	TX20	162	810		4,000
8 x 2″	TX20	144	718		3,500
9 x 1″	TX20	196	978	3,912	na
9 x 1-1/4″	TX20	164	822	3,288	na
9 x 1-1/2″	TX20	141	704		3,500
9 x 2″	TX20	112	560		3,000
9 x 2-1/2″	TX20	90	452		2,500
9 x 2-3/4″	TX20	78	392		2,000
9 x 3″	TX20	78	388		2,000
10 x 2″	TX20	85	426		2,500
10 x 2-1/2″	TX20	69	346		2,000
10 x 3″	TX20	59	295		1,500
10 x 3-1/2″	TX20	51	253		1,000
10 x 4″	TX20	45	226		1,000
10 x 5″	TX20	36	181		750
10 x 6″	TX20	30	152		600
Size	Drive	1lb	5lb	50ct	Bulk
14 x 5″	TX30	28	140	50	500
14 x 6″	TX30	24	118	50	500
14 x 7″	TX30	20	101	50	500
14 x 8″	TX30	18	89	50	500

Stainless Steel
Size	Drive	1lb	5lb	Bulk
8 x 1″	TX20	252	1260	10,000
8 x 1-1/4″	TX20	211	1053	9,000
8 x 1-1/2″	TX20	178	889	6,500
8 x 2″	TX20	138	689	3,500
9 x 1-1/2″	TX20	146	732	4,000
9 x 2″	TX20	113	563	3,000
9 x 2-1/2″	TX20	87	435	2,500
9 x 3″	TX20	76	378	2,000
10 x 2-1/2″	TX20	70	349	2,000
10 x 3″	TX20	60	302	1,500
10 x 3-1/2″	TX20	51	254	1,000
10 x 4″	TX20	46	229	1,000