keyword

4 x 40

Monthly search volume and cost-per-click data for "4 x 40" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=4+x+40&country=us" +--------------+------------------+ | volume | 1,300 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-22 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
2 x 2 1/2	8,100	$2.05	4/20
40 x 4	2,900	$0	7/20
4-40 bolt	1,600	$0.66	6/20
4-40 screw dimensions	1,600	$1.63	6/20
4-40 screws	1,600	$0.9	5/20
4x 40	1,000	$0	7/20
4-40 screws dimensions	480	$0.61	6/20
4-40 machine screw	210	$0.96	5/20
4x40 screws	70	$0.43	5/20
x 4 40	50	$0.44	6/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=4+x+40&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt