17-4 PH Pan Head Screws
RAYCHIN SPECIALTY METALS FASTENERS: BOLTS, NUTS, SCREWS, WASHERS, STUDS, THREADED RODS, U-BOLT, J-BOLTS
STANDARD AND CUSTOMIZED, SMALL BATCH AND LARGE BATCH, IMPERIAL AND METRIC
An extremely strong precipitation hardened stainless steel
· Well suited for high strength applciaitons
· Up to 4x stronger than 316 stainless steel
· Maintains its mechanical strength up to 600°F
· 17-4PH Chemistry & Specifications
· 17-4PH pan head screw features and benefits
· 17-4PH Datasheet
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17-4 PH Pan Head Screws: Machine Screws, Slotted, Phillips, Combo Drive & Custom Configurations
RAYCHIN LIMITED is a recognized expert in 17-4 PH pan head screws — from 17-4 PH pan head machine screws, 17-4 PH slotted pan head screws, 17-4 PH Phillips pan head screws, 17-4 PH combo drive pan head screws to custom non-standard pan head screw configurations. The pan head design provides a low-profile rounded top with flat bearing surface, ideal for general purpose fastening applications. Our portfolio includes pan head screws manufactured to NAS, AN, MS, ANSI, ASTM, ASME, SAE, API, NACE, ISO, DIN and KS standards. Engineered for extreme environments: aerospace, automotive, electronics, medical devices, and marine industries where high temperature resistance and corrosion protection are critical. 17-4 PH pan head screws are available in all heat treatment conditions with precision rolled threads and full traceability.
Complete Range of 17-4 PH Pan Head Screws
Pan Head Machine Screws
17-4 PH pan head machine screws with rounded top and flat bearing surface. Manufactured to ANSI B18.6.3, DIN 85, DIN 7985, ISO 1580, and ISO 7045 specifications. Available with slotted, Phillips, Pozidriv, or combo drive recesses. Ideal for general industrial applications, electronics, and automotive assemblies. Available in sizes from #0 to 1" (M1.6 to M24). Heat treated to H900 through H1150 conditions for tensile strengths up to 190 ksi (1310 MPa).
Slotted Pan Head Screws
17-4 PH slotted pan head screws featuring a single slot drive for traditional screwdriver applications. Manufactured to ANSI B18.6.3 and DIN 85 specifications. The slotted drive provides simplicity and universal tool compatibility. Ideal for applications where Phillips or other drives are not required. Available in all standard sizes with full traceability.
Phillips Pan Head Screws
17-4 PH Phillips pan head screws with cross-recessed drive for positive driver engagement and reduced cam-out compared to slotted drives. Manufactured to ANSI B18.6.3, DIN 7985, and ISO 7045 specifications. Available with Phillips #0 through #4 drive sizes. Ideal for automated assembly lines and applications requiring higher installation torque.
Combo Drive Pan Head Screws
17-4 PH combo drive pan head screws featuring both slotted and Phillips recesses for maximum driver compatibility. Manufactured to customer specifications. The combo drive allows installation with either slotted or Phillips drivers, providing flexibility in assembly and maintenance. Ideal for field service applications where multiple driver types may be available.
Aerospace & Military Pan Head Screws
17-4 PH pan head screws manufactured to NAS, AN, and MS specifications. Available with UNJF-3A threads per MIL-S-8879 for enhanced fatigue life. Shot peened per aerospace requirements and available with silver or cadmium plating for anti-galling. Full traceability with material certification and third-party testing available.
Custom & Specialty 17-4 PH Pan Head Screws
Need a special head diameter, unusual drive combination, or custom thread length? RAYCHIN engineers work with you to produce custom 17-4 PH pan head screws to your drawing. Expert heat treatment (H900, H925, H1025, H1075, H1100, H1150, H1150M, H1150D) precisely controlled for each batch. Manufactured to NAS, AN, MS, ANSI, ASTM, ASME, SAE, API, NACE, ISO, DIN, KS standards. Custom drive depths and tamper-resistant configurations available.
Pan Head Design Advantages for 17-4 PH Screws
Low Profile
The rounded top provides a low-profile head height while maintaining sufficient material for drive recess depth. Ideal for applications with limited clearance.
Flat Bearing Surface
The flat underside of the pan head provides even load distribution across the mating surface, reducing the risk of surface damage.
Drive Versatility
Pan head screws can accommodate slotted, Phillips, Pozidriv, Torx, or combination drives, making them suitable for a wide range of assembly tools.
Aesthetic Appeal
The smooth rounded appearance of pan head screws is preferred in consumer products and visible applications where appearance matters.
Manufacturing Standards for 17-4 PH Pan Head Screws
RAYCHIN LIMITED manufactures 17-4 PH pan head screws to the following national and international standards, ensuring full compliance for projects worldwide. Both standard and non-standard custom configurations are available.
International Standards & Global Designations for 17-4 PH Pan Head Screws
To serve clients worldwide, RAYCHIN LIMITED manufactures 17-4 PH pan head screws from material conforming to the following national and international specifications. This ensures full compliance for projects in the Americas, Europe, Asia, and the Middle East.
ASTM A564 GR.630 ASTM A193 GR.630 ASTM F593 GR.630 AMS 5643 1.4542 SUS630 UNS S17400 NACE MR0175 17-4PH
Chemical Composition (Weight %) – 17-4 PH Precipitation Hardening Stainless Steel
Our 17-4 PH pan head screws are produced from melts that strictly conform to the limits below per ASTM A564 / AMS 5604. The precise addition of copper and niobium enables age-hardening to achieve high strength.
Expert note: The Nb/Cu ratio ensures consistent precipitation of coherent copper-rich clusters during aging. This yields tensile strengths up to 190 ksi (1310 MPa) in the H900 condition while retaining good ductility. 17-4 PH is up to 4x stronger than 316 stainless steel. All raw material is positively identified by PMI (Positive Material Identification) and certified with mill test reports.
Complete Mechanical Properties of 17-4 PH Pan Head Screws (by Heat Treatment per ASTM A564/A564M)
17-4 PH pan head screws are available in eight standard heat treatment conditions. RAYCHIN LIMITED recommends the appropriate temper based on your strength vs. toughness requirements. The data below represent minimum values for the material (longitudinal direction) per ASTM A564 Table 3.
Condition H900 (480°C / 900°F) – Highest Strength
Condition H925 (495°C / 925°F) – Slightly lower strength, improved toughness
Condition H1025 (550°C / 1025°F) – Best combination of strength & toughness
Condition H1075 (580°C / 1075°F) – Improved ductility
Condition H1100 (595°C / 1100°F) – Enhanced toughness
Condition H1150 (620°C / 1150°F) – Maximum stress corrosion resistance
Condition H1150M (760°C + 620°C / 1400°F + 1150°F) – Double aged, maximum ductility (NACE MR0175 approved)
Condition H1150D (620°C + 620°C / 1150°F + 1150°F) – Double aged, improved properties (NACE MR0175 approved)
Additionally, 17-4 PH pan head screws exhibit excellent fracture toughness and very high fatigue strength. Our test certificates include actual values from each production lot. For sour service (NACE MR0175), H1150M or H1150D conditions are recommended for optimal sulfide stress corrosion cracking resistance.
High Temperature Performance of 17-4 PH Pan Head Screws
17-4 PH stainless steel maintains excellent mechanical properties up to 316°C (600°F), making it ideal for high-temperature applications in aerospace, power generation, and automotive systems.
Temperature-Dependent Strength Retention (Condition H900)
17-4 PH maintains its mechanical strength up to 600°F (316°C), with good properties retained even at higher temperatures. For continuous service above 400°C, special heat treatments or alternative alloys should be considered. Avoid long-term exposure to temperatures between 370-480°C to prevent loss of toughness at ambient temperature.
Thermal Stability Limits
Corrosion Resistance of 17-4 PH Pan Head Screws
17-4 PH stainless steel offers excellent corrosion resistance comparable to 304 stainless steel in many environments, attributed to its high chromium content (15-17.5%) which forms a protective Cr₂O₃ passive layer. The corrosion behavior is significantly influenced by heat treatment condition and aging parameters.
Corrosion Performance in Different Environments
Effect of Heat Treatment on Corrosion Resistance
Critical Corrosion Considerations for Pan Head Screws
- Sensitization: Aging above 495°C can cause chromium carbide precipitation at grain boundaries, leading to chromium depletion and increased susceptibility to intergranular corrosion. However, 17-4 PH is generally less susceptible to sensitization than conventional martensitic grades due to low carbon content.
- Optimal Aging: Specimens aged at 460°C for 2h or 480°C for 4h demonstrate minimal signs of sensitization and very low degrees of sensitization in DL-EPR tests.
- NACE MR0175 Compliance: For sour service applications, only H1150M and H1150D double-aged conditions are permitted with maximum hardness of 28 HRC.
- Comparison to 304: 17-4 PH offers comparable corrosion resistance to 304 stainless steel in many environments, with significantly higher strength (up to 4x stronger than 316).
Corrosion Engineering Note: For critical applications in aggressive environments, RAYCHIN LIMITED can provide passivation, specialized coatings (Xylan, PTFE, silver plating), or recommend optimal heat treatment conditions (H1150, H1150M for maximum stress corrosion cracking resistance). Third-party corrosion testing per ASTM G31, G48, or G61 available upon request. NACE MR0175 compliant pan head screws available in H1150M and H1150D conditions.
Special focus: 17-4 PH Pan Head Screws for Aerospace & Electronics Applications
For critical applications requiring reliable performance and drive versatility, RAYCHIN offers 17-4 PH pan head screws manufactured to NAS, MS, DIN, ISO, and customer-specific specifications. Our capabilities include:
- Aerospace Standards: NAS 500 series, MS 16995, MS 16996, MS 24693, MS 51957
- International Standards: DIN 85 (slotted pan head), DIN 7985 (Phillips pan head), ISO 1580 (slotted), ISO 7045 (Phillips)
- Thread Specifications: UNJF-3A per MIL-S-8879, metric MJ threads, standard UNRC/UNRF and metric coarse/fine
- Drive Types: Slotted, Phillips #0-4, Pozidriv, combo drive, Torx
- Surface Treatments: Silver plating per AMS 2410, cadmium plating per AMS 2400, passivation per AMS 2700
- High Temperature: Continuous service up to 316°C (600°F) with retained mechanical properties
- Sour Service (NACE MR0175): H1150M and H1150D double-aged conditions with hardness ≤ 28 HRC
- Custom: Special head diameters, unusual drive depths, and custom thread combinations per customer drawings
All 17-4 PH pan head screws are supplied in conditions H900 through H1150D, with full traceability and third-party NDT upon request.
Why RAYCHIN LIMITED – The 17-4 PH Pan Head Screw Authority
Metallurgical competence
Engineers on staff with deep expertise in precipitation hardening. We control aging parameters to ±5°C for consistent mechanical properties across all 17-4 PH pan head screws. Every heat is verified by in-house testing.
Global approvals & traceability
Our quality system is ISO 9001:2015 and AS9100D certified; we also comply with NAS, AN, MS, ANSI, ASTM, ASME, SAE, API, NACE, ISO, DIN and KS. Full material traceability from melt to final packaging (EN 10204 3.1/3.2). Third-party inspections (ABS, DNV, Lloyds) available.
Precision cold heading
In-house precision cold heading and CNC machining ensure consistent head geometry and drive recess formation. Full drive inspection available with optical comparators and go/no-go gauges. Torque testing per IFI standards available.
Custom solutions
Need a special head diameter, unusual drive combination, or custom thread length? Our cold heading and CNC turning departments handle short runs with agility. We also provide specialized coatings and corrosion testing per aerospace requirements.
Contact the 17-4 PH pan head screw experts today
Request a quote for 17-4 PH pan head machine screws, slotted pan head screws, Phillips pan head screws & custom configurations – any global standard (NAS, AN, MS, ANSI, ASTM, ASME, SAE, API, NACE, ISO, DIN, KS), any condition, any quantity. Inquire about high temperature or NACE MR0175 sour service applications.
sales@ray-chin.com | +86 534 2166 566Our team speaks English, German, Mandarin, and Japanese – ready for your global procurement.
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