INDASCO products meet international quality standards, providing fasteners trusted across industries worldwide. Certified processes and strict inspections ensure every piece delivers consistent excellence and reliability.
Our high-strength bolts are engineered for heavy-duty applications, supporting massive loads with unmatched safety. From bridges to machinery, INDASCO delivers performance where strength truly matters.
Beyond traditional fasteners, INDASCO focuses on innovative designs and custom solutions tailored to client needs. We combine technology and craftsmanship to deliver smarter fastening systems for modern industries.
Each category level on our website provides a clear structure that helps you navigate smoothly between different product groups. Here, you can view all related subcategories along with the products that belong to them. This approach allows you to quickly identify specifications, explore alternatives, and access technical details without confusion. Whether you are sourcing for a project, comparing standards, or selecting the exact item required, this section gives you a reliable starting point to proceed with confidence.
![Hexalobular Socket Round Head Screws with Collar [TABLE 2.2.12-2 VI] — ASME Hexalobular Socket Machine Screws, Indasco product S-03-0001](https://indasco.com/wp-content/uploads/2026/09/S-03-0001-Th.jpg)
ASME B 18.6.3 (H12B-VI) - 2024
Hexalobular Socket Round Head Screws with Collar [TABLE 2.2.12-2 VI]

ASME B 18.3 - 2003 (R2008)
Hexagon Socket Flat Countersunk Head Cap Screws
![Hexagon Socket Head Cap Screws [Table 1] (ASTM A574 / F837) — ASME Hex Socket Screws, Indasco product S-02-0003](https://indasco.com/wp-content/uploads/2026/09/S-02-0003-Th.jpg)
ASME B 18.3 (T1) - 2012
Hexagon Socket Head Cap Screws [Table 1] (ASTM A574 / F837)
![Hexagon Socket Head Shoulder Screws [Table 13] — ASME Hex Socket Screws, Indasco product S-02-0002](https://indasco.com/wp-content/uploads/2026/09/S-02-0002-Th.jpg)
ASME B 18.3 (T13) - 2012
Hexagon Socket Head Shoulder Screws [Table 13]
![Close Tolerance 100-deg Flat Countersunk Head Screws [TABLE 2.2.1-6 I/IA] — ASME Machine Screws, Indasco product S-01-0009](https://indasco.com/wp-content/uploads/2026/09/S-01-0009-Th.jpg)
ASME B 18.6.3 (H1F-I/H1F-IA) - 2024
Close Tolerance 100-deg Flat Countersunk Head Screws [TABLE 2.2.1-6 I/IA]
![Square Recessed Round Head Screws [TABLE 2.2.11-2 III] — ASME Machine Screws, Indasco product S-01-0008](https://indasco.com/wp-content/uploads/2026/09/S-01-0008-Th.jpg)
ASME B 18.6.3 (H11B-III) - 2024
Square Recessed Round Head Screws [TABLE 2.2.11-2 III]
![Square Recessed Pan Head Screws, Type III (ASTM F837, F468) [TABLE 2.2.5-3 III] — ASME Machine Screws, Indasco product S-01-0007](https://indasco.com/wp-content/uploads/2026/09/S-01-0007-Th.jpg)
ASME B 18.6.3 (H5C-III) - 2024
Square Recessed Pan Head Screws, Type III (ASTM F837, F468) [TABLE 2.2.5-3 III]
![Fillister Head Screws with Hexalobular Slot [TABLE 2.2.6-2 VI] — ASME Machine Screws, Indasco product S-01-0006](https://indasco.com/wp-content/uploads/2026/09/S-01-0006-Th.jpg)
ASME B 18.6.3 (H6B-VI) - 2024
Fillister Head Screws with Hexalobular Slot [TABLE 2.2.6-2 VI]
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