Hex Type Head Cross Recessed Bolt with Indentation

Factory Xiaoguo® Hex Type Head Cross Recessed Bolt with Indentation combines a hex drive for high torque, a cross recess for quick starting, and a center indentation to prevent head cracking – perfect for self‑tapping into metal or plastic. Customized sizes and coatings available – just ask for a quote.

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Product Description

Xiaoguo® factory produces Hex Type Head Cross Recessed Bolt with Indentation. The hex head supports high torque output, cross slot facilitates fast positioning, and central dent avoids head fracture, ideal for metal & plastic self-tapping applications. Custom dimensions and surface finishes are available; send inquiries for quotations.

If the Hex Type Head Cross Recessed Bolt with Indentation arrive and are found to be rusty or the packaging is broken, what should we do?

1.Items to be checked upon receipt

Check if the outer box is damaged, damp or deformed. If the outer box is flattened or cracked, the plastic bag inside may be damaged and the screws may be at risk of getting damp.

Opening box inspection: Grasp a handful of screws with your hand and check if there are any red rust or white rust on the surface.

2.The most common problems and causes in transportation

Problem phenomenon	Reason	Handling suggestions
There is white rust on the surface of the screw.	Galvanized screws oxidize in a high-humidity environment. The plastic inner bag is not fully sealed or has become damp.	Just wipe it with a dry cloth. It won't affect the use. If the white rust is in powder form, you can request a replacement.
There is rust red color on the surface of the screw.	Corrosion-resistant paper has failed, the packaging is damaged, and seawater has infiltrated.	Take photos for record and contact the after-sales service.
The cardboard box was flattened and the screws were scattered.	Excessive stacking height and rough handling	Count the quantity.

Hex Type Head Cross Recessed Bolt with Indentation

3.Our commitment and processing procedures

Before leaving the factory, carbon steel Hex Type Head Cross Recessed Bolt with Indentation undergo salt spray testing for each batch to ensure that they do not rust within at least 3 months after packaging.

If, after receiving the goods, it is found that the batch has rusted due to packaging issues, please follow the following procedure for handling:①The client provides photos or videos, along with the number of affected items.②After confirming that it is within the scope of transportation or packaging responsibility, we will free of charge re-send the same quantity of screws.③In case of an emergency, goods can be dispatched from the overseas warehouse first to ensure that production for customers is not affected.

（4）The customer can take their own protective measures.

After receiving the goods, remove the screws from the carton as soon as possible and place them in an indoor dry environment.

If you don't need to use it for the time being, don't open the inner plastic bag.

Avoid mixing stainless steel screws with carbon steel screws.

Hex Type Head Cross Recessed Bolt with Indentation

Mon	ST2.9	ST3.5	ST4.2	ST4.8	ST6.3	ST8
P	1.1	1.3	1.4	1.6	1.8	2.1
a max	1.1	1.3	1.4	1.6	1.8	2.1
da max	3.5	4.1	4.9	5.5	7.1	9.2
s max	5	5.5	7	8	10	13
s min	4.82	5.32	6.78	7.78	9.78	12.73
e min	5.4	5.96	7.59	8.71	10.95	14.26
k max	2.3	2.6	3	3.8	4.7	6
k min	2	2.3	2.6	3.3	4.1	5.2
r min	0.1	0.1	0.2	0.2	0.25	0.4
No.	1	2	2	2	3	3
M	2.5	3.5	4	4.4	6.2	7.2
t min	0.95	0.91	1.4	1.8	2.36	3.2
t max	1.32	1.43	1.9	2.33	2.86	3.86
d max	2.9	3.53	4.22	4.8	6.25	8
d min	2.76	3.35	4.04	4.62	6.03	7.78
d1 max	2.18	2.64	3.1	3.58	4.88	6.2
d1 min	2.08	2.51	2.95	3.43	4.7	5.99

FAQ

1.How about the connection firmness?

Sharp tapping thread bites materials firmly, stable fastening effect after installation.

2.What industries are these Hex Type Head Cross Recessed Bolt with Indentation applied to?

Widely used in machinery, furniture, electrical appliances and cabinet assembly.

3.Can you provide sample checking before formal order?

Free samples are available, you only need to bear the delivery cost.

4.What is the delivery time?

The standard inventory is 7-15 days; non-standard customization takes 30-45 days.

5.How do you ensure the quality?

Each batch of Hex Type Head Cross Recessed Bolt with Indentation undergoes size inspection, hardness testing and salt spray test. We can provide the test reports.