Dependable Face Projection Welding Bolt

During resistance welding, the projections on the Dependable Face projection welding bolt collapse, creating localized fusion zones to the parent metal. Customers worldwide trust Xiaoguo®, along with its reliable suppliers, to deliver bolts, nuts, screws, and washers precisely to specification.

Model:QC/T 599.1-1999

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Product Description

In appliance making—like white goods—and electronics cases, dependable face projection welding bolts are important for holding internal parts, panels, and mounting hardware onto sheet metal frames.

These bolts feature a single-side installation design, ensuring a clean, efficient installation and effectively blocking leak paths. This design not only simplifies the process and significantly improves assembly efficiency, but also helps maintain the performance and usability of consumer products over time.

Application Scenario

Dependable face projection welding bolts are used a lot in industrial machines, farm equipment, and structural metal work. They act as permanent anchor points for things like guards, hydraulic parts, sensors, and other accessories. These get mounted onto frames, plates, or enclosures, and the bolts’ strength and durability make them work well even in tough conditions.

Mon	M5	M6	M8	M10
P	0.8	1	1.25	1.5
dk max	12.4	14.4	16.4	20.4
dk min	11.6	13.6	15.6	19.6
k max	2	2.2	3.2	4.2
k min	1.6	1.8	2.8	3.8
e max	2.25	2.75	2.25	2.75
e min	1.75	2.25	1.75	2.25
b max	3.3	4.3	5.3	6.3
b min	2.7	3.7	4.7	5.7
h max	0.8	0.9	1.1	1.3
h min	0.6	0.75	0.9	1.1
d1 max	10	11.5	14	17.5
d1 min	9	10.5	13	16.5
r min	0.2	0.25	0.4	0.4
r max	0.6	0.7	0.9	1.2
a max	3.2	4	5	5

Anti-rust treatment

Dependable face projection welding bolts often have finishes like zinc plating—clear, yellow, or black chromate—to keep them from rusting. A lot of these meet ASTM B633 standards. Phosphating is another choice; it helps paint stick better and makes things slide more easily.

However, the finish must be used in conjunction with welding to achieve the best results. During welding, pure zinc coatings outperform thick chromate coatings in terms of adhesion, corrosion resistance and weld stability.

Dependable Face Projection Welding Bolt